61.

A train 120 m long crosses a standing man in 15 seconds. The speed of the train is :

A. 32 km/hr B. 36.5 km/hr
C. 28.8 km/hr D. 40 km/hr
Answer and Explanation
Answer:C
Explanation:
62.

A train 700 m long is running at 72 kmph. If it crosses a tunnel in 1 minute, the length of the tunnel is :

A. 700 m B. 600 m
C. 550 m D. 500 m
Answer and Explanation
Answer:D
Explanation:
63.

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

A. 120 metres B. 180 metres
C. 324 metres D. 150 metres
Answer and Explanation
Answer:D
Explanation: Speed=60 x 5 m/sec = 50 m/sec. Length of the train = (Speed x Time) = 50 x 9 m = 150 m.
64.

A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is:

A. 45 km/hr B. 50 km/hr
C. 54 km/hr D. 55 km/hr
Answer and Explanation
Answer:B
Explanation: Speed of the train relative to man = 125 m/sec 10 = 25 m/sec. 2 = 25 x 18 km/hr 2 5 = 45 km/hr. Let the speed of the train be x km/hr. Then, relative speed = (x - 5) km/hr. x - 5 = 45 x = 50 km/hr.
65.

The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is:

A. 200 m B. 225 m
C. 245 m D. 250 m
Answer and Explanation
Answer:C
Explanation: Speed = 45 x 5 m/sec = 25 m/sec. 18 2 Time = 30 sec. Let the length of bridge be x metres. Then, 130 + x = 25 30 2 2(130 + x) = 750 x = 245 m.