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Fri 28 Feb, 2014 12:40 am
A car completes a certain journey in 6 hours at a speed of 50 kilometre per hour. By how much the speed of the car must be increased to cover the same distance in 9/2 hours?
@Abhi2610,
(6hrs)(50k)=300k
9/2=4.5
(300k)/(4.5hrs)=66.66667 or 66.2/3k
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