Ravi drives from A to B at 60 km/h and returns at 40 km/h. If the total time taken is 5 hours, what is the distance between A and B?
Show answer & explanation
Correct answer: B
Explanation
Given:
Speed from A to B = 60 km/h
Speed from B to A = 40 km/h
Total time = 5 hours
Let the distance between A and B be x km.
Time taken to travel from A to B = x/60 hours
Time taken for the return journey = x/40 hours
According to the problem,
x/60 + x/40 = 5
(2x + 3x)/120 = 5
5x = 600
x = 120