Question

9) A train 120m long is running at a speed of 10 m/sec.The time taken by it
to pass a man standing near the railway line is ....​

Answer 1

Answer:

In 10 seconds, the train crosses a pole.

The length of the train 120 mts.

In 10 sec. distance covered = 12- mts.

In one sec. = 120/10 = 12 m/sec.

Speed = 12×18/5=216/5 = 46.2 kmph