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A person covers a distance in 24 minutes...

A person covers a distance in 24 minutes if he runs at a speed of 27 km per hour on an average. Find the speed at which he must run to reduce the time of journey to 18 minutes

Text Solution

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v=27 km/h
`d=vt=27*24/60=54/5 km`
`v=d/t=(54*60)/(5*18)=36` km/h.
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