Railway Recruitment Board Mathematics — Question 645
Question
A train running at 60 km/h crosses a 200m platform in 30s. Find length of train.
- 100m
- 200m
- 300m
- 400m
Correct answer
C — 300m
Explanation (English)
Speed = 60 km/h = 60×(5/18) = 50/3 m/s. Distance in 30s = (50/3)×30 = 500m. Train length = 500-200 = 300m
More Mathematics questions
- Percentage — If 20% of a number is 50, what is 40% of that number?
- Average — Find the average of 12, 18, 24, 30, 36
- Profit and Loss — A shopkeeper sells an item at 20% profit. If CP is ₹500, find SP.
- Simple and Compound Interest — What is the compound interest on ₹10000 at 10% per annum for 2 years?
- Ratio and Proportion — If the ratio of two numbers is 3:5 and their sum is 80, find the larger number.
- Boats and Streams — A man can row 15 km downstream in 3 hours and 9 km upstream in 3 hours. Find speed of stream.
Practice 1000+ more questions like this
TestPod AI has hand-curated previous-year-questions for SSC, RRB NTPC, IBPS PO, SBI Clerk, and more — with AI explanations in Tanglish, Hinglish, and English.