Speed of a man is 50 km/hr. If he stops for a few minutes in an hour, then its average speed becomes 45 km/hr. Find the total time of stoppage in an hour.
Answer & explanation
Correct answer: option 2
Normal Speed = 50Km/hr
Reduced Speed = 45 k/h
Note: Average speed reduced by 5km/hr, it means the time taken by the man to travel 5 km at normal speed is equals to the time of stoppage.
Therefore,
At normal speed
50km in 60min
5 km in 6 min
He stop 6 min in an hour.