{"id":223693,"date":"2025-08-06T13:08:21","date_gmt":"2025-08-06T07:38:21","guid":{"rendered":"https:\/\/www.oliveboard.in\/blog\/?p=223693"},"modified":"2025-08-06T13:08:22","modified_gmt":"2025-08-06T07:38:22","slug":"pipe-and-cistern","status":"publish","type":"post","link":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/","title":{"rendered":"Pipe and Cistern Concepts, Formulas, Short Tricks and Tips"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_77 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of content<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#What_Is_Pipe_and_Cistern_in_Quantitative_Aptitude\" >What Is Pipe and Cistern in Quantitative Aptitude?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#Why_Is_Pipe_and_Cistern_Important_in_Competitive_Exams\" >Why Is Pipe and Cistern Important in Competitive Exams?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#Terms_Used_in_Pipe_and_Cistern_Questions\" >Terms Used in Pipe and Cistern Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#Concepts_of_Pipe_and_Cistern_Questions\" >Concepts of Pipe and Cistern Questions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#What_Are_the_Types_of_Pipe_and_Cistern_Questions_in_Quantitative_Aptitude\" >What Are the Types of Pipe and Cistern Questions in Quantitative Aptitude?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#Pipe_and_Cistern_Formulas\" >Pipe and Cistern Formulas<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#Pipe_and_Cistern_Tricks_for_SSC_CGL_and_Other_Exams\" >Pipe and Cistern Tricks for SSC CGL and Other Exams<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#Solved_Pipe_and_Cistern_Questions_from_2024%E2%80%9325_Exams\" >Solved Pipe and Cistern Questions from 2024\u201325 Exams<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#Pipe_and_Cistern_Concepts_for_Bank_Exams\" >Pipe and Cistern Concepts for Bank Exams<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#Common_Mistakes_to_Avoid_while_Solving_Pipe_and_Cistern\" >Common Mistakes to Avoid while Solving Pipe and Cistern<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#What_Are_Related_Topics_I_Should_Revise_Next\" >What Are Related Topics I Should Revise Next?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#FAQs\" >FAQs<\/a><\/li><\/ul><\/nav><\/div>\n\n<p>Quantitative Aptitude is a key component of most competitive exams, and one of the most practical chapters is Pipe and Cistern. This topic is a variation of Time and Work, focused on fluid-based problems like filling or emptying tanks using inlets and outlets. In this blog, we have provided all the details about Pipe and Cistern concepts, types of questions asked, time-saving tricks, strategies, and more.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Is_Pipe_and_Cistern_in_Quantitative_Aptitude\"><\/span>What Is Pipe and Cistern in Quantitative Aptitude?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><strong>Pipe and Cistern<\/strong> questions deal with the rate of flow of liquid in or out of a tank. Pipes can fill (inlets) or empty (outlets) a tank, and the problem revolves around how long it takes to fill or empty the cistern.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why it Appears in Exams:<\/h3>\n\n\n\n<p>This topic checks:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Basic time-work concept<\/li><li>Logical application of speed-flow analogy<\/li><li>Efficiency understanding of combined work (inlets vs outlets)<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Skills Required:<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Calculation speed<\/li><li>Fraction handling<\/li><li>Time-work logic<\/li><li>Visualization of filling\/emptying process<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Is_Pipe_and_Cistern_Important_in_Competitive_Exams\"><\/span>Why Is Pipe and Cistern Important in Competitive Exams?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Pipe and Cistern is one of the easier chapters that, if prepared well, can help you score full marks in the exam from this topic<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Exam<\/strong><\/td><td><strong>No. of Questions<\/strong><\/td><td><strong>Difficulty<\/strong><\/td><\/tr><tr><td>SSC CGL \/ CHSL<\/td><td>1\u20132<\/td><td>Easy<\/td><\/tr><tr><td>IBPS PO \/ SBI PO<\/td><td>1\u20132<\/td><td>Moderate<\/td><\/tr><tr><td>RRB NTPC \/ Group D<\/td><td>1<\/td><td>Easy<\/td><\/tr><tr><td>State PSC \/ Police<\/td><td>1\u20132<\/td><td>Moderate<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link\" href=\"https:\/\/www.oliveboard.in\/ibps-po-mock-test\/?ref=contac-acb\" target=\"_blank\" rel=\"noreferrer noopener\">Attempt A Free IBPS PO Mock Test<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Terms_Used_in_Pipe_and_Cistern_Questions\"><\/span>Terms Used in Pipe and Cistern Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Terms commonly used in pipe and cistern types of questions are as follows:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Term<\/strong><\/td><td><strong>Details<\/strong><\/td><\/tr><tr><td>Inlet Pipe<\/td><td>A pipe that <strong>fills<\/strong> the tank<\/td><\/tr><tr><td>Outlet Pipe<\/td><td>A pipe that <strong>empties<\/strong> the tank<\/td><\/tr><tr><td>Net Work<\/td><td>Total work done when both inlet and outlet operate together<\/td><\/tr><tr><td>Efficiency (Rate)<\/td><td>Part of the tank filled\/emptied in 1 hour or 1 minute<\/td><\/tr><tr><td>LCM Method<\/td><td>Used to avoid fractional calculations (consider tank as 60L, 120L)<\/td><\/tr><tr><td>Negative Work<\/td><td>Outlet pipe\u2019s work is taken as negative in combined equations<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Concepts_of_Pipe_and_Cistern_Questions\"><\/span>Concepts of Pipe and Cistern Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Some of the common concepts used while solving pipe and cistern questions are as follows:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Concept<\/strong><\/td><td><strong>Explanation<\/strong><\/td><\/tr><tr><td>Inlet fills in &#8216;x&#8217; hr<\/td><td>1\/x part of tank is filled per hour<\/td><\/tr><tr><td>Outlet empties in &#8216;y&#8217; hr<\/td><td>1\/y part is emptied per hour (taken as -1\/y in equations)<\/td><\/tr><tr><td>Net Rate Formula<\/td><td>Net rate = (Inlet rate \u2013 Outlet rate)<\/td><\/tr><tr><td>Time to Fill\/Empty<\/td><td>Time = Work \u00f7 Net Rate<\/td><\/tr><tr><td>If both pipes open together<\/td><td>Total time = 1 \/ (1\/x \u2013 1\/y) or 1 \/ (1\/x + 1\/y), depending on in\/outlet<\/td><\/tr><tr><td>Partial Fill Problem<\/td><td>Use ratio method or unitary method for \u201chalf-filled\u201d scenarios<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_the_Types_of_Pipe_and_Cistern_Questions_in_Quantitative_Aptitude\"><\/span>What Are the Types of Pipe and Cistern Questions in Quantitative Aptitude?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Types of questions commonly asked from the topic are as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Direct Questions<\/strong>: One inlet or outlet with simple time calculation<\/li><li><strong>Combined Pipes<\/strong>: Both pipes operate together (positive and negative work)<\/li><li><strong>Leakage-based<\/strong>: Leakage reduces flow; subtract leakage rate from inlet<\/li><li><strong>Variable Pipes<\/strong>: Pipes open\/close after certain time<\/li><li><strong>Cyclic Pattern<\/strong>: Pipes open in fixed order repeatedly<\/li><\/ul>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link\" href=\"https:\/\/www.oliveboard.in\/sbi-po-mock-test\/?ref=contac-acb\" target=\"_blank\" rel=\"noreferrer noopener\">Attempt A Free SBI PO Mock Test<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pipe_and_Cistern_Formulas\"><\/span>Pipe and Cistern Formulas <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Here are the time-saving formulas and logical templates:<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li><strong>If a pipe fills a tank in x hours<\/strong>, its rate = 1\/x<\/li><li><strong>If a pipe empties a tank in y hours<\/strong>, its rate = \u20131\/y<\/li><li><strong>If both pipes work together<\/strong>, net rate = (1\/x \u2013 1\/y) or (1\/x + 1\/y)<\/li><li><strong>If the tank is partially filled\/emptied<\/strong>, apply the formula: Time=VolumeNet&nbsp;Rate\\text{Time} = \\frac{\\text{Volume}}{\\text{Net Rate}}Time=Net&nbsp;RateVolume\u200b<\/li><li><strong>LCM shortcut<\/strong>: Assume tank volume = LCM of individual times to simplify<\/li><\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pipe_and_Cistern_Tricks_for_SSC_CGL_and_Other_Exams\"><\/span>Pipe and Cistern Tricks for SSC CGL and Other Exams<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Some of the quick time saving tricks are as follows:<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li><strong>Assume Tank Capacity as LCM<\/strong> of all time values (e.g., 60L, 120L)<\/li><li><strong>Treat outlet as negative work<\/strong> when working with both inlet and outlet<\/li><li><strong>Skip unit conversion<\/strong> unless time is in minutes and rate is per hour<\/li><li><strong>Use ratio method<\/strong> for partial fill questions<\/li><li><strong>Cross-check units<\/strong> (minutes\/hour) before applying formulas<\/li><li><strong>Reverse solve from options<\/strong> if stuck with calculations<\/li><\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Solved_Pipe_and_Cistern_Questions_from_2024%E2%80%9325_Exams\"><\/span>Solved Pipe and Cistern Questions from 2024\u201325 Exams<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Recent memory-based and mock-based problems are as follows:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. <strong>Asked in SSC CGL 2024 Tier 1 \u2013 Shift 2 (Memory-Based)<\/strong><\/h3>\n\n\n\n<p><strong>Q:<\/strong> A pipe fills a tank in 6 hours. A second pipe empties it in 9 hours. If both are opened together, in how much time will the tank be filled?<br><strong>A:<\/strong><br>Rate of fill = 1\/6, Rate of empty = \u20131\/9<br>Net rate = 1\/6 \u2013 1\/9 = (3\u20132)\/18 = 1\/18<br><strong>Ans:<\/strong> 18 hours<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. <strong>From IBPS PO Prelims 2024 (Mock Based)<\/strong><\/h3>\n\n\n\n<p><strong>Q:<\/strong> Two inlet pipes can fill a tank in 12 hours and 18 hours respectively. How long will they take together?<br><strong>A:<\/strong><br>Combined rate = 1\/12 + 1\/18 = (3+2)\/36 = 5\/36<br>Time = 36\/5 = <strong>7.2 hours<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. <strong>Based on Memory \u2013 RRB NTPC 2024 Shift 1<\/strong><\/h3>\n\n\n\n<p><strong>Q:<\/strong> A tank is filled in 10 hours by an inlet. There\u2019s a leak that empties the full tank in 20 hours. How long will it take to fill the tank?<br><strong>A:<\/strong><br>Net rate = 1\/10 \u2013 1\/20 = (2\u20131)\/20 = 1\/20<br><strong>Ans:<\/strong> 20 hours<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Pipe_and_Cistern_Concepts_for_Bank_Exams\"><\/span>Pipe and Cistern Concepts for Bank Exams<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Bank exams like IBPS\/SBI often ask questions like:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Pipes with delays (e.g., second pipe opens after 3 hours)<\/li><li>Pipes working alternately<\/li><li>Leak detection or net loss of efficiency<\/li><\/ul>\n\n\n\n<p><strong>Example:<\/strong><br>A pipe can fill a tank in 10 hours. After 4 hours, a leak is detected that empties it in 20 hours. How much more time to fill the tank?<br>(Solve in 2 parts: 4 hours full, then net rate with leak)<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-16018d1d wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link\" href=\"https:\/\/www.oliveboard.in\/ssc-cgl-mock-test\/?ref=contac-acb\" target=\"_blank\" rel=\"noreferrer noopener\">Attempt A Free SSC CGL Mock Test<\/a><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Common_Mistakes_to_Avoid_while_Solving_Pipe_and_Cistern\"><\/span>Common Mistakes to Avoid while Solving Pipe and Cistern<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Some of the common types of mistakes aspirants must avoid while solving questions from Pipe and Cistern are as follows:<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li><strong>Wrong sign for outlet<\/strong> \u2013 Always treat outlet as negative work<\/li><li><strong>Ignoring time units<\/strong> \u2013 Convert minutes to hours or vice versa<\/li><li><strong>Adding instead of subtracting rates<\/strong> \u2013 When one fills and one empties<\/li><li><strong>Incorrect tank assumption<\/strong> \u2013 Use LCM or 1 as tank capacity for simplicity<\/li><li><strong>Misreading delays\/opening times<\/strong> \u2013 Carefully read timing of pipe openings<\/li><\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Are_Related_Topics_I_Should_Revise_Next\"><\/span>What Are Related Topics I Should Revise Next?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Topics you should revise next are as follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Questions based on Time and Distance<\/li><li>Rules and Practice Questions of Trigonometry<\/li><li>Shortcuts and Patterns of Number Series<\/li><li>Various types of Questions Based on Data Interpretation<\/li><li>Tricks &amp; Examples of Problems on Age based Questions<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQs\"><\/span>FAQs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1754465104046\"><strong class=\"schema-faq-question\">Q1. What is the basic concept of Pipe and Cistern problems?<\/strong> <p class=\"schema-faq-answer\">They are based on time and work, involving pipes filling or emptying a tank.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1754465105123\"><strong class=\"schema-faq-question\">Q2. How do you calculate the rate of a pipe?<\/strong> <p class=\"schema-faq-answer\">Divide 1 by the time it takes to fill or empty the tank.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1754465105651\"><strong class=\"schema-faq-question\">Q3. How do you handle an outlet pipe in problems?<\/strong> <p class=\"schema-faq-answer\">Treat outlet work as negative when calculating combined rate.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1754465106523\"><strong class=\"schema-faq-question\">Q4. What formula is used when both pipes work together?<\/strong> <p class=\"schema-faq-answer\">Net rate = 1\/x \u00b1 1\/y, depending on inlet or outlet involvement.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1754465107087\"><strong class=\"schema-faq-question\">Q5. What is a leakage-based Pipe and Cistern problem?<\/strong> <p class=\"schema-faq-answer\">It involves subtracting the leak\u2019s rate from the inlet pipe\u2019s rate.<\/p> <\/div> <\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<ul class=\"wp-block-latest-posts__list is-grid columns-3 wp-block-latest-posts\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/union-bank-apprentice-salary\/\">Union Bank Apprentice Salary 2026, Stipend and Job Profile Details<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/union-bank-of-india-apprentice-syllabus\/\">Union Bank Apprentice Syllabus 2026 &amp; Exam Pattern<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/union-bank-of-india-apprentice-recruitment\/\">Union Bank Apprentice Recruitment 2026, Apply 1865 Posts<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/bank-merger-list\/\">Bank Mergers List in India, 1993 to 2026, Latest Updates<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/nicl-assistant-vs-ibps-po-mains\/\">NICL Assistant Mains vs IBPS PO Mains 2026: Detailed Comparison<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.oliveboard.in\/blog\/banking-terms-for-ibps-po-interview\/\">IBPS PO Interview 2026: Download Important Banking Terms PDF<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Quantitative Aptitude is a key component of most competitive exams, and one of the most practical chapters is Pipe and<\/p>\n","protected":false},"author":58,"featured_media":223694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31,10231],"tags":[],"class_list":["post-223693","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bank-exams","category-ssc-railways","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pipe and Cistern Concepts, Formulas, Short Tricks and Tips<\/title>\n<meta name=\"description\" content=\"Learn about the formulas and concepts used in solving Pipe and Cistern questions, along with the types of questions asked from the topic.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pipe and Cistern Concepts, Formulas, Short Tricks and Tips\" \/>\n<meta property=\"og:description\" content=\"Quantitative Aptitude is a key component of most competitive exams, and one of the most practical chapters is Pipe and Cistern. This topic is a variation\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/\" \/>\n<meta property=\"og:site_name\" content=\"Oliveboard\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Oliveboard\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-06T07:38:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-06T07:38:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/08\/pipe-and-cistern.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"730\" \/>\n\t<meta property=\"og:image:height\" content=\"480\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"AditiOB\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@Oliveboard\" \/>\n<meta name=\"twitter:site\" content=\"@Oliveboard\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"AditiOB\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/\"},\"author\":{\"name\":\"AditiOB\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/#\/schema\/person\/0cbc4ac8555ced346681804861de062c\"},\"headline\":\"Pipe and Cistern Concepts, Formulas, Short Tricks and Tips\",\"datePublished\":\"2025-08-06T07:38:21+00:00\",\"dateModified\":\"2025-08-06T07:38:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/\"},\"wordCount\":1106,\"publisher\":{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/08\/pipe-and-cistern.webp\",\"articleSection\":[\"Bank Exams\",\"SSC &amp; Railways\"],\"inLanguage\":\"en-US\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/\",\"url\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/\",\"name\":\"Pipe and Cistern Concepts, Formulas, Short Tricks and Tips\",\"isPartOf\":{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/08\/pipe-and-cistern.webp\",\"datePublished\":\"2025-08-06T07:38:21+00:00\",\"dateModified\":\"2025-08-06T07:38:22+00:00\",\"description\":\"Learn about the formulas and concepts used in solving Pipe and Cistern questions, along with the types of questions asked from the topic.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#breadcrumb\"},\"mainEntity\":[{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465104046\"},{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105123\"},{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105651\"},{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465106523\"},{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465107087\"}],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#primaryimage\",\"url\":\"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/08\/pipe-and-cistern.webp\",\"contentUrl\":\"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/08\/pipe-and-cistern.webp\",\"width\":730,\"height\":480},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.oliveboard.in\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Bank Exams\",\"item\":\"https:\/\/www.oliveboard.in\/blog\/category\/bank-exams\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Pipe and Cistern\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/#website\",\"url\":\"https:\/\/www.oliveboard.in\/blog\/\",\"name\":\"Oliveboard\",\"description\":\"Free Govt. Exam Alerts &amp; Resources\",\"publisher\":{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.oliveboard.in\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/#organization\",\"name\":\"Oliveboard\",\"url\":\"https:\/\/www.oliveboard.in\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2021\/11\/logo.png\",\"contentUrl\":\"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2021\/11\/logo.png\",\"width\":150,\"height\":40,\"caption\":\"Oliveboard\"},\"image\":{\"@id\":\"https:\/\/www.oliveboard.in\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/Oliveboard\",\"https:\/\/x.com\/Oliveboard\",\"https:\/\/www.instagram.com\/oliveboard.in\/\",\"https:\/\/www.youtube.com\/channel\/UCRvrHAyNdOMI_JBkE2pjZtw?sub_confirmation=1\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/#\/schema\/person\/0cbc4ac8555ced346681804861de062c\",\"name\":\"AditiOB\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/d1e881725409eac0bd9260c141e2a522d2a6a86c9dfeba73e8523e493f39e045?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/d1e881725409eac0bd9260c141e2a522d2a6a86c9dfeba73e8523e493f39e045?s=96&d=mm&r=g\",\"caption\":\"AditiOB\"},\"description\":\"Hi, I\u2019m Aditi. I work as a Content Writer at Oliveboard, where I have been simplifying exam-related content for the past 4 years. I create clear and easy-to-understand guides for JAIIB, CAIIB, and UGC exams. My work includes breaking down notifications, admit cards, and exam updates, as well as preparing study plans and subject-wise strategies. My goal is to support working professionals in managing their exam preparation alongside a full-time job and to help them achieve career growth.\",\"sameAs\":[\"www.linkedin.com\/in\/aditi-chakraborty-131b3b379\"]},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465104046\",\"position\":1,\"url\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465104046\",\"name\":\"Q1. What is the basic concept of Pipe and Cistern problems?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"They are based on time and work, involving pipes filling or emptying a tank.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105123\",\"position\":2,\"url\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105123\",\"name\":\"Q2. How do you calculate the rate of a pipe?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Divide 1 by the time it takes to fill or empty the tank.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105651\",\"position\":3,\"url\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105651\",\"name\":\"Q3. How do you handle an outlet pipe in problems?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Treat outlet work as negative when calculating combined rate.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465106523\",\"position\":4,\"url\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465106523\",\"name\":\"Q4. What formula is used when both pipes work together?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Net rate = 1\/x \u00b1 1\/y, depending on inlet or outlet involvement.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465107087\",\"position\":5,\"url\":\"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465107087\",\"name\":\"Q5. What is a leakage-based Pipe and Cistern problem?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It involves subtracting the leak\u2019s rate from the inlet pipe\u2019s rate.\",\"inLanguage\":\"en-US\"},\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Pipe and Cistern Concepts, Formulas, Short Tricks and Tips","description":"Learn about the formulas and concepts used in solving Pipe and Cistern questions, along with the types of questions asked from the topic.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/","og_locale":"en_US","og_type":"article","og_title":"Pipe and Cistern Concepts, Formulas, Short Tricks and Tips","og_description":"Quantitative Aptitude is a key component of most competitive exams, and one of the most practical chapters is Pipe and Cistern. This topic is a variation","og_url":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/","og_site_name":"Oliveboard","article_publisher":"https:\/\/www.facebook.com\/Oliveboard","article_published_time":"2025-08-06T07:38:21+00:00","article_modified_time":"2025-08-06T07:38:22+00:00","og_image":[{"width":730,"height":480,"url":"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/08\/pipe-and-cistern.webp","type":"image\/webp"}],"author":"AditiOB","twitter_card":"summary_large_image","twitter_creator":"@Oliveboard","twitter_site":"@Oliveboard","twitter_misc":{"Written by":"AditiOB","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"NewsArticle","@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#article","isPartOf":{"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/"},"author":{"name":"AditiOB","@id":"https:\/\/www.oliveboard.in\/blog\/#\/schema\/person\/0cbc4ac8555ced346681804861de062c"},"headline":"Pipe and Cistern Concepts, Formulas, Short Tricks and Tips","datePublished":"2025-08-06T07:38:21+00:00","dateModified":"2025-08-06T07:38:22+00:00","mainEntityOfPage":{"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/"},"wordCount":1106,"publisher":{"@id":"https:\/\/www.oliveboard.in\/blog\/#organization"},"image":{"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#primaryimage"},"thumbnailUrl":"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/08\/pipe-and-cistern.webp","articleSection":["Bank Exams","SSC &amp; Railways"],"inLanguage":"en-US"},{"@type":["WebPage","FAQPage"],"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/","url":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/","name":"Pipe and Cistern Concepts, Formulas, Short Tricks and Tips","isPartOf":{"@id":"https:\/\/www.oliveboard.in\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#primaryimage"},"image":{"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#primaryimage"},"thumbnailUrl":"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/08\/pipe-and-cistern.webp","datePublished":"2025-08-06T07:38:21+00:00","dateModified":"2025-08-06T07:38:22+00:00","description":"Learn about the formulas and concepts used in solving Pipe and Cistern questions, along with the types of questions asked from the topic.","breadcrumb":{"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#breadcrumb"},"mainEntity":[{"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465104046"},{"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105123"},{"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105651"},{"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465106523"},{"@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465107087"}],"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#primaryimage","url":"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/08\/pipe-and-cistern.webp","contentUrl":"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2025\/08\/pipe-and-cistern.webp","width":730,"height":480},{"@type":"BreadcrumbList","@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.oliveboard.in\/blog\/"},{"@type":"ListItem","position":2,"name":"Bank Exams","item":"https:\/\/www.oliveboard.in\/blog\/category\/bank-exams\/"},{"@type":"ListItem","position":3,"name":"Pipe and Cistern"}]},{"@type":"WebSite","@id":"https:\/\/www.oliveboard.in\/blog\/#website","url":"https:\/\/www.oliveboard.in\/blog\/","name":"Oliveboard","description":"Free Govt. Exam Alerts &amp; Resources","publisher":{"@id":"https:\/\/www.oliveboard.in\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.oliveboard.in\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.oliveboard.in\/blog\/#organization","name":"Oliveboard","url":"https:\/\/www.oliveboard.in\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.oliveboard.in\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2021\/11\/logo.png","contentUrl":"https:\/\/www.oliveboard.in\/blog\/wp-content\/uploads\/2021\/11\/logo.png","width":150,"height":40,"caption":"Oliveboard"},"image":{"@id":"https:\/\/www.oliveboard.in\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/Oliveboard","https:\/\/x.com\/Oliveboard","https:\/\/www.instagram.com\/oliveboard.in\/","https:\/\/www.youtube.com\/channel\/UCRvrHAyNdOMI_JBkE2pjZtw?sub_confirmation=1"]},{"@type":"Person","@id":"https:\/\/www.oliveboard.in\/blog\/#\/schema\/person\/0cbc4ac8555ced346681804861de062c","name":"AditiOB","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.oliveboard.in\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/d1e881725409eac0bd9260c141e2a522d2a6a86c9dfeba73e8523e493f39e045?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/d1e881725409eac0bd9260c141e2a522d2a6a86c9dfeba73e8523e493f39e045?s=96&d=mm&r=g","caption":"AditiOB"},"description":"Hi, I\u2019m Aditi. I work as a Content Writer at Oliveboard, where I have been simplifying exam-related content for the past 4 years. I create clear and easy-to-understand guides for JAIIB, CAIIB, and UGC exams. My work includes breaking down notifications, admit cards, and exam updates, as well as preparing study plans and subject-wise strategies. My goal is to support working professionals in managing their exam preparation alongside a full-time job and to help them achieve career growth.","sameAs":["www.linkedin.com\/in\/aditi-chakraborty-131b3b379"]},{"@type":"Question","@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465104046","position":1,"url":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465104046","name":"Q1. What is the basic concept of Pipe and Cistern problems?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"They are based on time and work, involving pipes filling or emptying a tank.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105123","position":2,"url":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105123","name":"Q2. How do you calculate the rate of a pipe?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Divide 1 by the time it takes to fill or empty the tank.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105651","position":3,"url":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465105651","name":"Q3. How do you handle an outlet pipe in problems?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Treat outlet work as negative when calculating combined rate.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465106523","position":4,"url":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465106523","name":"Q4. What formula is used when both pipes work together?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Net rate = 1\/x \u00b1 1\/y, depending on inlet or outlet involvement.","inLanguage":"en-US"},"inLanguage":"en-US"},{"@type":"Question","@id":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465107087","position":5,"url":"https:\/\/www.oliveboard.in\/blog\/pipe-and-cistern\/#faq-question-1754465107087","name":"Q5. What is a leakage-based Pipe and Cistern problem?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"It involves subtracting the leak\u2019s rate from the inlet pipe\u2019s rate.","inLanguage":"en-US"},"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.oliveboard.in\/blog\/wp-json\/wp\/v2\/posts\/223693","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.oliveboard.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.oliveboard.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.oliveboard.in\/blog\/wp-json\/wp\/v2\/users\/58"}],"replies":[{"embeddable":true,"href":"https:\/\/www.oliveboard.in\/blog\/wp-json\/wp\/v2\/comments?post=223693"}],"version-history":[{"count":1,"href":"https:\/\/www.oliveboard.in\/blog\/wp-json\/wp\/v2\/posts\/223693\/revisions"}],"predecessor-version":[{"id":223695,"href":"https:\/\/www.oliveboard.in\/blog\/wp-json\/wp\/v2\/posts\/223693\/revisions\/223695"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.oliveboard.in\/blog\/wp-json\/wp\/v2\/media\/223694"}],"wp:attachment":[{"href":"https:\/\/www.oliveboard.in\/blog\/wp-json\/wp\/v2\/media?parent=223693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.oliveboard.in\/blog\/wp-json\/wp\/v2\/categories?post=223693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.oliveboard.in\/blog\/wp-json\/wp\/v2\/tags?post=223693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}