Question: 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?
Options:
A) 40 s
B) 48 s
C) 36 s
D) 46 s
Show Answer
Answer:
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{Total,distance}{Speed}=\frac{480}{10}=48,s $