In how much time will a train of length 100 m, moving at 36 kmph cross an electric pole?
A). 22 sec
B). 15 sec
C). 18 sec
D). 10 sec
10 sec
Convert kmph to mps. 36 kmph = 36 * 5/18 = 10 mps.
The distance to be covered is equal to the length of the train.
Required time t = d/s = 100/10 = 10 sec.
10. In a 1000 m race, A beats B by 200 meters or 25 seconds. Find the speed of B?