Q. A train crosses a standing man in 7 seconds and crosses a platform in 21 seconds. What is the ratio of train length to platform length?
✅ Correct Answer: (A)
1:2
Explanation: Length ratio = 7 : (21−7) = 7:14 = 1:2.
Explanation by: Hriday
Length ratio = 7 : (21−7) = 7:14 = 1:2.