A train traveled at an average speed of 100 kmph stopping for 4 minutes after every 50 km How long d...........

Quantitative Aptitude (CDS) Time & distance

A train traveled at an average speed of 100 kmph, stopping for 4 minutes after every 50 km. How long did it take to reach its destination 800 km from the starting point?

6 hours

7 hours

8 hours

9 hours

Explanation:

Time taken to cover 800km,
= 800/100 = 8 hours
Number of stoppages = (800/50)-1 = 15
Total time of stoppage = (15×4) = 60minutes
= 1hour
Hence, total time taken = 8+1 = 9hours