a car covers half the distance at a speed of 50 km per hour and the other half of 40 km per hour find the average speed of the car
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total distance covered = 50 + 40= 90km
total time taken = 2 hours
so, average speed = 90/2 = 45km/hr
total time taken = 2 hours
so, average speed = 90/2 = 45km/hr
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i think its the answer.....
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