The Alphabetical Series topic is an important part of the General Intelligence and Reasoning section in the RRB NTPC exam. RRB NTPC 2025 Alphabet Series Questions test a candidate’s ability to identify patterns, logical sequences, and relationships between letters of the English alphabet. Candidates are asked to find missing letters, identify the next element in a sequence, detect the wrong term, or determine patterns based on the positions of letters in the English alphabet. Solving these questions regularly improves logical thinking, observation skills, and speed, which are essential for performing well in competitive exams like RRB NTPC.
Download RRB NTPC 2025 Alphabet Series Questions PDF
A free PDF has been shared below for the top alphabetical series questions commonly asked in the RRB NTPC Exam for 2025. Download it and know the level of difficulty:
Practice the Top Alphabetical Series Questions for RRB NTPC Exam (Live)
Candidates need to practice the alphabetical series questions regularly to score well in the reasoning section. A quiz of 30 alphabetical series questions has been provided below for the applicants. Attempt the quiz live to know your performance level.
Alphabetical Series Questions for RRB NTPC Exam
Q.1 What should come in place of the question mark (?) in the given series based on the English alphabetical order? BDF HIL NPR TVX ?
Q.2 What should come in place of the question mark (?) in the given series? AZ BY CX DW ?
Q.3 What should come in place of the question mark (?) in the given series? ACE GIK MOP SUW ?
Q.4 What should come in place of the question mark (?) in the given series? ZXV USQ PNL KIF ?
Q.5 What should come in place of the question mark (?) in the given series? ABD EFH IJL MNP ?
Q.6 What should come in place of the question mark (?) in the given series? ABZ CDY EFX GHW ?
Q.7 What should come in place of the question mark (?) in the given series? Z W T Q N ?
Q.8 What should come in place of the question mark (?) in the given series? AC FH KM PR ?
Q.9 What should come in place of the question mark (?) in the given series? A D I P ?
Q.10 What should come in place of the question mark (?) in the given series? BEH KNQ TWZ ?
Q.11 What should come in place of the question mark (?) in the given series? MKI, HFD, CAY, ?
Q.12 What should come in place of the question mark (?) in the given series? AZ EV IR MN ?
Q.13 What should come in place of the question mark (?) in the given series? BC EF IJ NO ?
Q.14 What should come in place of the question mark (?) in the given series? DHL PTX BFJ ?
Q.15 What should come in place of the question mark (?) in the given series? BCE DFJ GKT ?
Quiz Summary
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Alphabetical Series Questions for RRB NTPC Exam
Q.16 What should come in place of the question mark (?) in the given series? ABCZ DEFX GHIV JKLR ?
Q.17 What should come in place of the question mark (?) in the given series? ZYX WVU TSR QPO ?
Q.18 What should come in place of the question mark (?) in the given series? AC FH KM PR UW ?
Q.19 What should come in place of the question mark (?) in the given series? BDF GIK LNP QSU ?
Q.20 What should come in place of the question mark (?) in the given series? AB CD GH MN ?
Q.21 Which of the following will replace the question mark (?) in the given series? A2Z, D4W, G6T, J8Q, ?
Q.22 Which of the following will replace the question mark (?) in the given series? Z1A, X3C, V5E, T7G, ?
Q.23 Which of the following will replace the question mark (?) in the given series? A1B2, C3D4, E5F6, G7H8, ?
Q.24 Which of the following will replace the question mark (?) in the given series? B2E, D4G, F6I, H8K, ?
Q.25 Which of the following will replace the question mark (?) in the given series? OKI4, QLG8, SME12, UOC16, ?
Q.26 Which of the following will replace the question mark (?) in the given series? A3Z, C6X, E9V, G12T, ?
Q.27 Which of the following will replace the question mark (?) in the given series? M1N2O, P3Q4R, S5T6U, ?
Q.28 Which of the following will replace the question mark (?) in the given series? Z26, X23, V20, T17, ?
Q.29 Which of the following will replace the question mark (?) in the given series? AZ1, CX3, EV5, GT7, ?
Q.30 Which of the following will replace the question mark (?) in the given series? P5Q, R7S, T9U, V11W, ?
Quiz Summary
What is the RRB NTPC Exam Pattern?
The RRB NTPC Exam Pattern for CBT 1 consists of 100 questions in total. Each question carries one mark. There is also a negative marking of -1/3 mark for every incorrect answer. Check out the exam pattern below:
| Section | Questions | Marks |
| Mathematics | 30 | 30 |
| General Intelligence and Reasoning | 30 | 30 |
| General Awareness | 40 | 40 |
| Total | 100 | 100 |
RRB NTPC CBT 2 Exam Pattern
The CBT 2 exam pattern on the other hand consists of 120 questions from Mathematics, General Intelligence and Reasoning, and General Awareness. Given below are the details:
| Section | Questions | Marks |
| Mathematics | 35 | 35 |
| General Intelligence and Reasoning | 35 | 35 |
| General Awareness | 50 | 50 |
| Total | 120 | 120 |
FAQs
Alphabetical Series Questions are reasoning problems where letters are arranged in a particular pattern or sequence. Candidates must identify the pattern and find the missing letter, next term, or incorrect element in the series.
These questions are important because they are commonly asked in the Reasoning section of the RRB NTPC exam. They are usually easy to solve and help candidates score quick marks if they understand the pattern correctly.
Common types include letter series completion, missing letters, identifying the wrong term, letter skipping patterns, and mixed letter-number sequences.
To solve them quickly, candidates should memorize the positions of letters in the English alphabet (A=1, B=2, C=3, etc.), practice identifying common patterns, and regularly solve previous years’ questions and mock tests.
Generally, 1–3 questions related to alphabetical series may appear in the Reasoning section, although the exact number can vary depending on the exam shift and paper pattern.
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