-
A train 300 metres long is running at a speed of 25 metres per second. It will cross a bridge of 200 metres in
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- 5 seconds
- 10 seconds
- 20 seconds
- 25 seconds
Correct Option: C
In crossing the bridge, the train travels its own length plus the length of the bridge.
Total distance (length)
= 300 + 200 = 500 m.
Speed = 25m/sec.
∴ The required time
= 500 ÷ 25 = 20 seconds
Second Method :
Here, x = 300m, y= 200 m, t = ?
u= 25 m/sec
| t = | |
| u |
| = | |
| 25 |
| = | |
| 25 |
t = 20 seconds
