Question

A train with a speed of 60 km/h takes 2 h to reach station B from station A. If the train returns back to station A at a speed of 40 km/h, what will be the time taken by the train to return to station A?​

• A.
  2 hours
• B.
  3 hours
• C.
  4 hours
• D.
  1.5 hours

Answer 1

The correct option is B

3 hours
Given,
Onward journey of the train from station A to B
Speed = 60 km/h
Time taken = 2 h

Return journey of the train from station B to A
Speed = 40 km/h
Time taken = ?

Since, the distance travelled by the train in onward and return journey will be same.
So, distance travelled by the train between station A and B =
= speed * time
=60 km/h * 2h
= 120 km
Time taken in the return journey = (Distance between stations)/ (return speed)
= (120 km)/(40 km/h)
= 3 h or 3 hours

Thus, the time taken by the train to station A fron station B is 3 hours