RRB Group D 2-Nov-2014 Shift 2 Solved Paper

Question : 77 of 100

Marks: +1, -0

An express train travelled 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?

6 hours 21 minutes
6 hours 24 minutes
6 hours 27 minutes
6 hours 30 minutes

Validate

Solution:

Speed = Distance/Time
Total distance to be covered = 600 km
Average speed of the train = 100 km/hr
Time taken to cover the total distance without stopping = 6 hours
Number of times the train will stop in covering a distance of 600 km =

600/75 = 8

times
Extra time taken by the train due to stoppage = 8 × 3 minutes = 24 minutes
Since after 525 km, the train does not need to stop to cover the remaining 75 km distance, therefore, the total time taken by the train to reach its destination = 6 hours 21 minutes.

Go to Question:

Prev Question

Next Question