Mathematics · Speed, Time and Distance
Two trains A and B, 210 m and 150 m respectively in length, are running in the same direction on parallel lines. If the speed of A and B be 110 km/h and 128 km/h respectively, then what will be the time (in seconds) taken by train B to cross train A?
- 172✓
- 274
- 371
- 470
Correct answer
72
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