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A train 110 metre long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going ?
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- 5 seconds
- 6 seconds
- 7 seconds
- 10 seconds
Correct Option: B
Relative speed of train
= (60 + 6) kmph.
| = |  |  | m/sec. | |
| 18 |
| = | m/sec. | |
| 3 |
Length of train = 110 metre
| ∴ Required time = | | | seconds | |
| 55/3 |
| = | | | seconds | |
| 55 |
= 6 seconds
