Question

John covers a distance by driving a car at 60kmph and he returns back to the starting point onthe scooter at 40kmph. find the average speed for the whole journey

Answer 1

avg speed = total distance / total time
= (x+x) /( x/40 + x/60)
= 48 km/hr

Answer 2

HEY DEAR ... ✌

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Let distance be x
total distance is 2x
time for going=x/60
time taken for returning=x/40
total time=(x/60)+(x/40)
=5x/120
avg speed=total dis./ total time
=2x/(5x/120)
=48

HOPE , IT HELPS ... ✌