| How many seconds will a train 120 m long running at the rate of 36 km/h take to cross a bridge of 360 m in length? |
| [SSC (CPO) 2015] |
A) 40 s
B) 48 s
C) 36 s
D) 46 s
Correct Answer: B
Solution :
| Speed of train |
| \[=36\,km/h=36\times \frac{5}{18}=10\,m/s\] |
| Total distance covered by train |
| \[=120+360=480\,m\] |
| \[\therefore \] Time taken by train to cross the bridge |
| \[=\frac{\text{Total}\,\text{distance}}{\text{Speed}}\,\,=\frac{480}{10}=48\,s\] |
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