Question

A body travels from point a to b with the speed of 40 km/hr and returns from point b to a with the speed of 60 km/hr what will the average speed? plz it's urgent...​

Answer 1

Answer:

Explanation:

average speed = sum of speeds /number of speeds

=40+60/2

=100/2

=50km/hr

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Answer 2

Answer:

Explanation:

average speed = total distance / total time taken

                          =total distance / ( distance/velocity)

                           = 2 s / ( s/40 +s/60)

                            =2/ ( 60+40)/(60×40)

                            = (2× 60×40) / (60+40)

                            = 4800 / 100

                            = 48 km /hr