# How Much Time Taken by a Train to Pass The a Post ? If

A Train 180 mts long a running at a speed of 90 km/hr. How long will it take to pass a post ?

- 8.2 sec
- 7.8 sec
- 8 sec
- 7.2 sec

**Answer: (4) 7. 2 sec**

**Explanation:-**

The length of the train = 180 mtr.

The speed of the train = 90 km /hr

Then, the speed of train = 90 x 5/ 18

= 5 x 5 = 25 m/sec

Time taken by a train to pass s post = 180/25

= 7.2 sec

Hence, the answer is (4) 7 . 2 sec.