Question

A bus goes from a town from town A to another town B with a speed of 30kmh-1 and return back to the town A with speed of 60 km-1. What is the average speed of car during the complete journey ? full explanation

Answer 1

Answer:

Explanation:

Let distance from A  to B is x

And time from A to B is t1

Time from B to A is t2

Then, t1= x/40

          t2= x/60

So, average speed = total distance/total time

x+x/x/40+x/60

2/1/40+1/60

2x40x60/100 = 48km/h

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Answer 2

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