A train traveled at an average speed of 100 km/hr, stopping for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point.
A. 6 hours 24 mins
B. 6 hours 21 mins
C. 6 hours 18 mins
D. 6 hours 15 mins
Correct Answer :
B. 6 hours 21 mins
Time taken to cover 600 km = 6 hours Number of stops = Total time on stops = 7*3 = 21 mins Total time taken by train = 6 hours 21 mins