Question

A car travels 30 km at a uniform speed of 40 km per hour and next 30 km at a uniform speed of 20 km/h finds its average speed

Answer 1

Answer :-

Total dis travelled = 60 kms

initial speed = 40 km/h

next speed = 20 km/h

average speed = (int. speed + final speed)/2

= (40 + 20)/2 kms/h

= 60/2

= 30 kms/h___ans.

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