a car travels at a speed of 20 km/h for half the distance and at 30 km/h in the other half find the average speed of the car
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Answer:
Explanation:
average speed=2s1*s2/(s1+s2)
where s1 is speed for first half
s2 is speed for second half
average speed=2*20*30/(20+30)
=1200/50
=24
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