a car travels at a speed of 50 km/hr for 30 minutes, at 30 km/hr for the next 15 minutes and then 70 km/hr for the next 45 minutes. what is the average speed of the car?
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Answer:
here average speed =total distance travelled upon total time taken
Explanation:
50+30+70=150 upon 30+15+45=90 150 upon 90 then do division = 0.6 is average speed of a car
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