Multiple choice

A train cover a certain distance at a speed of 60 km/hr however it will halt for fixed time interval in each hour its average speed reduced 50 km/hr . What is the time interval for which the train halt in each hour ?

  1. 10 min

  2. 12 min

  3. 6 min

  4. 20 min

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The train covers 60 km in 1 hour without stops. With stops, it covers 50 km in 1 hour. The time lost is the time taken to cover the missing 10 km at 60 km/hr. Time = (10/60) hours = 1/6 hours = 10 minutes.