Q.

A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

A. 150 m
B. 120 m
C. 180 m
D. 200 m
Answer» A. 150 m
Explanation: We know that, Distance = Speed * Time.
Here, Distance is the length of the train and time = 9 seconds.
We convert speed from km/hr to m/sec by multiplying by 5/18, so Speed = 60*(5/18) m/sec = 50/3 m/sec.
Therefore,
Distance = Speed * Time = 50/3 m/sec * 9 sec = 150 m.
So, the length of the train is 150 m.
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