Free RRB NTPC practice questions
Try five arithmetic questions from our railway mathematics practice bank. Work through HCF and LCM, speed, profit, ratios and compound interest, then check your method against the explanation.
Mathematics foundations
5 questions · Suggested study time: 7 minutes. This set is untimed. Score one point per correct answer, with no negative marking. Original practice, not official PYQs or a full mock.
0 of 5 answered · 0 correct
The LCM of two numbers is 120 and their HCF is 10. If one number is 40, the other is:
Choose an answer to see the explanation.
A train 150 m long crosses a pole in 15 seconds. Its speed is:
Choose an answer to see the explanation.
An article bought for ₹450 is sold for ₹540. The profit percentage is:
Choose an answer to see the explanation.
If A : B = 2 : 3 and B : C = 4 : 5, then A : C is:
Choose an answer to see the explanation.
What is the compound interest on ₹10,000 at 10% per annum for 2 years, compounded annually?
Choose an answer to see the explanation.
How to review this RRB NTPC practice
Write metres and seconds before converting train speed to kilometres per hour. A correct calculation in the wrong unit can still lead to the wrong option.
Profit percentage uses cost price in this set. Compound interest is the final amount minus the original principal. Name the requested value before calculating it.
These questions also appear in the RRB NTPC mathematics subject practice. Review the topic guidance there, then add other topics from the official syllabus.
RRB NTPC practice — FAQ
This is a short set of 5 original practice questions covering mathematics foundations. It is an arithmetic sample, without General Awareness, reasoning or a full CBT simulation. It is not an official previous-year paper or a full exam simulation.
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