Question

A car travels at a speed of 80km/h during the first half of its running time and at 40 km/h during the other half find the average speed of the car.​

Answer 1

Hello There!

Answer:

For first half, distance=80t/2

For next half distance=40t/2

Avg. Speed=(80t/2)+(40t/2)/(t/2)+(t/2)

=60 KM/H

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