Two trains traveling in opposite direction crosses a man in 17 sec and 27 sec respectively and they cross each other in 23 sec. Find the ratio of their speeds.
- A. 1 : 2
- B. 2 : 1
- C. 2 : 3 ✓
- D. 5 : 7
Correct Answer: C. 2 : 3
Explanation
By allegation on crossing times: speeds ratio = (27 - 23) : (23 - 17) = 4 : 6 = 2 : 3.
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