Question

A train 150 metres long passes a telegraph post in 12 seconds Find the speed of the train ?
1. 10 m/sec
2. 15 m/sec
3. 12.5 m/sec
4. 12 m/sec

Answer 1

Correct Answer - Option 3 : 12.5 m/sec

Given :

A train 150 metres long passes a telegraph post in 12 seconds

Concept used :

Speed = Distance/time 

Calculations :

According to the question 

Speed of the train = 150/12           (distance = length of the train)

⇒ 12.5 m/sec

∴ Option 3 will be the correct choice.