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A car can finish a certain journey in 10 hours at a speed of 48 km/hr. In order to cover the same distance in 8 hours, the speed of the car must be increased by ?
6 km/hr
7.5 km/hr
12 km/hr
15 km/hr
Distance = Speed * Time = 48 * 10 = 480 km.
To cover the same distance, now we have 8 hours of time.
Speed = D/T = 480/8 = 60 km/hr
Speed in the previous case = 48 km/hr
Hence the required increase = 60 - 48 = 12 km/hr
By: Deepak Dawra ProfileResourcesReport error
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