Jainish drives to cover a distance of 900km at the speed of 75km/hour. If he drives at the speed of 100km/hour, then how much time will he save to cover the same distance.
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distance=900km
speed=75km/h
time=900/75=12hour
in second case
distance=900km
speed=100km/h
time=900/100=9hour
so the save time =12-9hours=3 hours
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this is your ans ,. hope you understand very well
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