# A Train 300 m Long is Running with a Speed of 54 km/hr. In What Time will it Cross a Telephone Pole?

**Answer: (1) 20 Sec**

Explanation:-

The speed of a train = 54 km/h

Speed in m/sec = 54 x 5/18

= 3 x 5 = 15 m/sec

Distance covered by train = Length of the train = 300 m

Taken time by train to cross a telephone = 300/15

= 20 sec

Hence, the answer is (1) 20 sec.