Question

a car covers 20 km distance in 30 minutes with a speed of 30 km per hour and next 20 km with a speed of 40 km per hour in 30 minutes what is the average speed of the car
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Answer 1

Explanation:

avg speed = total distance/total time

=20+20/30+30

=40/1hr

=40kmper hour is the avg speed of the car

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