Aman goes from A to B at a speed of 40 km/h. Using the same route, he comes back from B to A, at a speed of 55 km/h. What is his approximate average speed for the whole journey?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 46.32 km/h
Average speed = (Where A and B are the speeds)
Therefore Average speed = 2 x 40 x 55/(40 + 55)
⇒ 46.32 km/h