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A train covers a distance in 50 min, if ...

A train covers a distance in 50 min, if it runs at a speed of 48 km/h on an average. The speed at which the train must run to reduce the time of journey to 40 min is

A

50km/hr

B

55 km/hr

C

60km/hr

D

70km/hr

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The correct Answer is:
C
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