Railways | RRB NTPC
RRB NTPC sets 65 Mathematics questions for 65 marks across 2 stages, so it is worth planning your preparation around the topics below.
The quantitative core of the railway papers: arithmetic, mensuration, and time-speed-distance built on a secondary-school foundation. Fluency with fractions, percentages and ratios underlies almost every question, so that is where practice pays back fastest.
How much Mathematics is worth in each RRB NTPC stage, from the official pattern.
| Stage | Questions | Marks | Time | Share |
|---|---|---|---|---|
| Computer Based Test 1 | 30 | 30 | — | 30% |
| Computer Based Test 2 | 35 | 35 | — | 29% |
Every topic in the official syllabus. The linked ones open a set of solved questions you can practise straight away.
Written to the RRB NTPC pattern, with the answer key and the method behind it — a look at how the section is actually set before you drill the full topic sets.
Profit and loss · solved example
A shopkeeper marks an article 40% above its cost price and then allows a discount of 25%. Find his profit percentage.
Solution
Let cost be 100. Marked price is 140, and after a 25% discount the selling price is 140 × 0.75 = 105, a profit of 5%.
Mensuration · solved example
The perimeter of a rectangle is 40 cm and its length is 12 cm. Find its breadth.
Solution
Half the perimeter is length + breadth = 20, so the breadth is 20 − 12 = 8 cm.
Average · solved example
The average of five consecutive even numbers is 24. Find the largest of them.
Solution
For consecutive numbers the average is the middle term, so the numbers are 20, 22, 24, 26, 28 and the largest is 28.
Simplification · solved example
Find the value of √324 + √225.
Solution
√324 = 18 and √225 = 15, so the sum is 33. Memorising squares up to 30 makes these instant.
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Mathematics shows up in every RRB NTPC mock test, in the same interface, with sectional locking and negative marking.
RRB NTPC CEN 06/2025 (graduate) and CEN 07/2025 (undergraduate) cycles sets 65 Mathematics questions for 65 marks, split across 30 in the Computer Based Test 1 and 35 in the Computer Based Test 2.
Yes. RRB NTPC deducts one third of a mark for each wrong answer, Mathematics included, so unsure guesses cost you. One third of a mark is deducted for each wrong answer.
The RRB NTPC syllabus lists Number system, decimals and fractions, LCM and HCF, Ratio and proportion, Percentage, Profit and loss, Simple and compound interest and more. Weight your revision towards the ones you are weakest on and confirm the emphasis against the paper analysis for recent cycles.
Every Mathematics question on this site is free and written to the exam pattern. Use the topic drills for instant-feedback practice, the daily quiz to keep the section warm, and the RRB NTPC mock tests to sit it under a real clock with negative marking.