A) 15 s
B) 10 s
C) 12 s
D) 14 s
Correct Answer: B
Solution :
Speed of the train relative to man\[=(50-5)km/h\]= 45 km/h \[=\left( 45\times \frac{5}{18} \right)\,\,\text{m/s}=\frac{25}{2}\,\,\text{m/s}\] Distance covered in passing the man = 125 m \[\therefore \]Time taken \[=\frac{125}{(25/2)}\text{s}=\left( 125\times \frac{2}{25} \right)\text{s}=10\,\,\text{s}\]You need to login to perform this action.
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