A car takes 7 hours to cover a certain distance at the speed of 48 km per hour is this period is decreased buy current only 20 km per hour how much time will it take to cover the same distance
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let the distance it travelled be = x km
time taken = 7 hours
speed =48 km/h
we know that d=st
x=48(7)=336km
now decreased speed = 48-20=28km/h
distance=336km
time=d/s
=336/28=12 hours
therefore it takes 12 hours
Answered by
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let the distance it travelled be = x km
time taken = 7 hours
speed =48 km/h
we know that d=st
x=48(7)=336km
now decreased speed = 48-20=28km/h
distance=336km
time=d/s
=336/28=12 hours
therefore it takes 12 hours
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