Important Maths Questions for RRB Group D Exam: The RRB Group D Examination is conducted by the Railway Recruitment Board to recruit candidates for various Group D posts. One of the most important sections in the Group D exam is mathematics. The important topics that candidates must study for mathematics include Square Root, Percentage, Tabular Graph, Pie Chart, LCM & HCF, Divisibility & Remainder, Partial Speed, Relative Speed, and more. In this article, we will provide some important questions related to mathematics for the RRB Group D Exam 2026.
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Download RRB Group D Mathematics Questions PDF
Candidates who are gearing up for the upcoming Railway Group D examination must download the important questions PDF to have an idea about the difficulty level. The direct download link is shared below:
RRB Group D Mathematics Questions Quiz – Practice Now
We have given below the most common mathematics questions for the applicants. Attempt the quiz and know your performance levels, weak areas to focus on.
- What is 25% of 480?
a) 110
b) 120
c) 130
d) 140
Answer: b) 120 - The square of 18 is
a) 324
b) 342
c) 361
d) 384
Answer: a) 324 - If CP = ₹500 and SP = ₹550, profit percent is
a) 8%
b) 10%
c) 12%
d) 15%
Answer: b) 10% - The average of first 10 natural numbers is
a) 5
b) 5.5
c) 6
d) 6.5
Answer: b) 5.5 - A train travels 120 km in 2 hours. Speed is
a) 50 km/h
b) 55 km/h
c) 60 km/h
d) 65 km/h
Answer: c) 60 km/h - The HCF of 24 and 36 is
a) 6
b) 8
c) 12
d) 18
Answer: c) 12 - What is the cube of 7?
a) 321
b) 343
c) 361
d) 384
Answer: b) 343 - If 20% of a number is 50, the number is
a) 200
b) 225
c) 250
d) 300
Answer: c) 250 - The perimeter of a square of side 12 cm is
a) 36 cm
b) 40 cm
c) 48 cm
d) 52 cm
Answer: c) 48 cm - The ratio of 15 to 25 is
a) 2 : 3
b) 3 : 5
c) 4 : 5
d) 5 : 6
Answer: b) 3 : 5 - Find the simple interest on ₹2000 at 5% for 2 years
a) ₹150
b) ₹180
c) ₹200
d) ₹220
Answer: c) ₹200 - √289 =
a) 15
b) 16
c) 17
d) 18
Answer: c) 17 - If x + 9 = 20, x =
a) 9
b) 10
c) 11
d) 12
Answer: c) 11 - Area of a rectangle (l = 15 cm, b = 10 cm)
a) 120 cm²
b) 150 cm²
c) 160 cm²
d) 180 cm²
Answer: b) 150 cm² - The value of (10² − 6²) is
a) 64
b) 72
c) 80
d) 88
Answer: a) 64 - 3/5 of 250 is
a) 120
b) 140
c) 150
d) 160
Answer: c) 150 - The LCM of 8 and 12 is
a) 16
b) 20
c) 24
d) 32
Answer: c) 24 - A man walks at 4 km/h. Time to cover 12 km
a) 2 hr
b) 2.5 hr
c) 3 hr
d) 4 hr
Answer: c) 3 hr - The sum of first 20 natural numbers is
a) 200
b) 210
c) 220
d) 230
Answer: b) 210 - If SP = CP, then
a) Profit
b) Loss
c) No profit no loss
d) 10% profit
Answer: c) No profit no loss - The value of 5² + 12²
a) 144
b) 150
c) 169
d) 180
Answer: c) 169 - 40% of 150
a) 50
b) 60
c) 70
d) 80
Answer: b) 60 - HCF of 18, 27 and 36
a) 3
b) 6
c) 9
d) 12
Answer: c) 9 - If 5 men complete a work in 10 days, 10 men will take
a) 4 days
b) 5 days
c) 6 days
d) 8 days
Answer: b) 5 days - The diameter of a circle is 14 cm. Radius is
a) 5 cm
b) 6 cm
c) 7 cm
d) 8 cm
Answer: c) 7 cm - Convert 0.5 into fraction
a) 1/2
b) 1/3
c) 2/3
d) 3/4
Answer: a) 1/2 - If CP = ₹400 and loss = ₹40, SP =
a) ₹340
b) ₹350
c) ₹360
d) ₹380
Answer: c) ₹360 - √625 =
a) 20
b) 22
c) 25
d) 28
Answer: c) 25 - The sum of angles of a quadrilateral is
a) 180°
b) 270°
c) 360°
d) 540°
Answer: c) 360° - 15% of 200
a) 25
b) 30
c) 35
d) 40
Answer: b) 30 - If 2x = 40, x =
a) 10
b) 15
c) 20
d) 25
Answer: c) 20 - The ratio 4 : 6 is equal to
a) 2 : 3
b) 3 : 4
c) 4 : 5
d) 5 : 6
Answer: a) 2 : 3 - Area of square of side 9 cm
a) 72
b) 81
c) 90
d) 99
Answer: b) 81 - Cube root of 64
a) 2
b) 3
c) 4
d) 5
Answer: c) 4 - A car travels 180 km in 3 hours. Speed
a) 50 km/h
b) 55 km/h
c) 60 km/h
d) 65 km/h
Answer: c) 60 km/h - The average of 5 numbers is 20. Sum is
a) 80
b) 90
c) 100
d) 120
Answer: c) 100 - The smallest prime number is
a) 0
b) 1
c) 2
d) 3
Answer: c) 2 - Value of (8 + 2)²
a) 80
b) 90
c) 100
d) 120
Answer: c) 100 - 1/4 of 360
a) 80
b) 90
c) 100
d) 120
Answer: b) 90 - If SP = ₹660 and profit = 10%, CP =
a) ₹600
b) ₹620
c) ₹640
d) ₹660
Answer: a) ₹600 - The sum of first 10 even numbers
a) 90
b) 100
c) 110
d) 120
Answer: c) 110 - √144 =
a) 10
b) 11
c) 12
d) 13
Answer: c) 12 - The perimeter of rectangle (l = 12, b = 8)
a) 30
b) 40
c) 50
d) 60
Answer: b) 40 - If 25% of a number is 75, the number is
a) 200
b) 250
c) 300
d) 350
Answer: c) 300 - Value of 9³
a) 729
b) 656
c) 512
d) 343
Answer: a) 729 - The ratio of 2 hours to 30 minutes
a) 2 : 1
b) 3 : 1
c) 4 : 1
d) 5 : 1
Answer: c) 4 : 1 - HCF of 20 and 30
a) 5
b) 10
c) 15
d) 20
Answer: b) 10 - If 12 men do a work in 6 days, one day’s work =
a) 1/6
b) 1/12
c) 1/72
d) 1/18
Answer: c) 1/72 - The value of (7² − 5²)
a) 24
b) 26
c) 28
d) 30
Answer: a) 24 - The number of sides in a pentagon
a) 4
b) 5
c) 6
d) 7
Answer: b) 5
Download RRB Group D Previous Year Question Papers
What is the RRB Group D Exam Pattern?
The RRB Group D Exam Pattern is divided into subjects like – General Science, Mathematics, General Intelligence and Reasoning, and General Awareness. Check out the exam pattern given below:
| Subjects | Questions | Marks |
|---|---|---|
| General Science | 25 | 25 |
| Mathematics | 25 | 25 |
| General Intelligence & Reasoning | 30 | 30 |
| General Awareness and Current Affairs | 20 | 20 |
| Total | 100 | 100 |
FAQs
RRB Group D Maths mainly includes Number System, Percentage, Ratio & Proportion, Profit & Loss, Simple Interest, Time & Work, Time & Distance, Mensuration, Algebra, and Average. The questions are usually easy to moderate and formula-based.
The Maths section is generally easy to moderate. Most questions are direct and concept-based, and many are repeated in similar patterns from previous years.
In CBT (Computer Based Test), around 25 questions are asked from Mathematics out of 100 total questions.
High-weightage topics include:
Percentage
Profit & Loss
Ratio & Proportion
Time & Work
Time & Distance
Simple Interest
Mensuration
Average
To prepare effectively:
Revise basic formulas daily
Practice previous year questions
Focus on calculation speed and accuracy
Attempt mock tests regularly
Strengthen weak topics first
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