Question

A car travels at a distance at speed of 50km/h and returns at a speed of 40km/hr. Calculate the average speed for the whole journey

Answer 1

Answer:

22 2/9

Explanation:

let the distance be x

Then,tThe time taken on going is x/50,

Time taken on coming is x/40

The distance is same

So,find Average speed

x÷(x/50+x/40)

solve it

x÷9x/200

Average speed is 200/9

That is 22 2/9