A car takes 6 hours to cover a distance of 540 km. How much should the speed in km/hr be maintained to cover the same distance in 3/2 of the previous time?

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60 km/hr

62 km/hr

75 km/hr

77 km/hr

answer is A.

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Detailed Solution

Total distance= 540 km

Car takes to cover the distance = 6 hrs.

Speed of car to cover the distance in $\frac{3}{2}$ of the previous time.

$= \frac{540}{6 \times \frac{3}{2}} = \frac{540}{9} = 60 km / hr$

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