Railways | RPF SI
RPF SI sets 35 Mathematics questions for 35 marks in the Computer Based Test, 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 RPF SI stage, from the official pattern.
| Stage | Questions | Marks | Time | Share |
|---|---|---|---|---|
| Computer Based Test | 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 RPF SI 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.
Simple interest · solved example
A sum of money doubles itself in 8 years at simple interest. Find the rate of interest per annum.
Solution
To double, the interest must equal the principal, so 100% is earned in 8 years, which is 100 ÷ 8 = 12.5% per year.
Profit and loss · solved example
On selling an article for Rs 350, a shopkeeper loses 12.5%. Find its cost price.
Solution
A 12.5% loss means 350 = 87.5% of cost, so cost = 350 ÷ 0.875 = 400.
Multiplication · solved example
Find the product 18 × 24.
Solution
Multiplying directly, 18 × 24 = 432.
Average · solved example
Find the average of 12, 16, 20, 24, 28.
Solution
The sum of the 5 numbers is 100, and dividing by 5 gives 20.
Advertisement
Mathematics shows up in every RPF SI mock test, in the same interface, with sectional locking and negative marking.
RPF SI: 27-question practice mock
27 questions | 27 min
RPF SI Latest notified cycle sets 35 Mathematics questions for 35 marks in the Computer Based Test.
Yes. RPF SI 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. Questions left blank carry no penalty.
The RPF SI syllabus lists Number system and simplification, Decimals and fractions, LCM and HCF, Ratio and proportion, Percentage, Average 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 RPF SI mock tests to sit it under a real clock with negative marking.