The station B lies between station A and C. The distance between A & B is 400…
2022
The station B lies between station A and C. The distance between A & B is 400 km and the distance between B & C is 375 km. Time taken by a train to cover distance between A & B and distance between B & C is same. If speed of the train to cover distance between A & B is 40 km/hr. then find the difference between the average speed of the train and the speed of train by which it covers distance between B & C?
- A.
1.75
- B.
1.25
- C.
1.15
- D.
1.35
- E.
2.25
Attempted by 4 students.
Show answer & explanation
Correct answer: B
A to B takes 400/40 = 10 hours. B to C also takes 10 hours, so speed from B to C is 375/10 = 37.5 km/h. Overall average speed is 775/20 = 38.75 km/h. Difference = 1.25 km/h.