132) Two trains running in the same directions
cross a man standing on the platform in
15 seconds and 25 seconds respectively and they
cross each other in 18 seconds. The ratio of their
speeds is
A) 31:2
B) 43:3
C) 34 : 3
D) 7:3
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Explanation: Let the speeds of the two trains be x m/sec and y m/sec respectively. Then, length of the first train = 27x metres, and length of the second train = 17y metres
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