Question

jatin travels from place A to place B at a certain speed. When he comes back from place B to place A his speed is 60 kilometers per hour. If the average speed for the whole journey is 72 kilometers per hour, find his speed when he travels from place A to B.​

Answer 1

Answer:

let the speed of jatin when he travells from a to b be x .

and average speed = sum of all speeds/2

72=x+60/2

72×2=x+60

144=x+60

x=144-60

x=84

therefore , the speed of jatin when he travells from a to b is 84 kmph