In how much time will a train of length 100 m, moving at 54 kmph cross an electric pole?

In how much time will a train of length 100 m, moving at 54 kmph cross an electric pole?

Quiz

Answer/Solution

sec

Steps/Work

Convert kmph to mps. 54 kmph = 54 * 5/18 = 15 mps.
The distance to be covered is equal to the length of the train.
Required time t = d/s = 100/15= 6.7 sec.
Answer:D