A train cover a distance in 50 minutes, if it runs at a speed of 48 km per hour on an average. The speed at which the train must run to reduce the time of journey to 40 minutes ?

A train cover a distance in 50 minutes, if it runs at a speed of 48

1.	A train cover a distance in 50 minutes, if it runs at a speed of 48 km per hour on an average. The speed at which the train must run to reduce the time of journey to 40 minutes ?
A.	50 km/hr.
B.	55 km/hr.
C.	60 km/hr.
D.	70 km/hr.
Answer» D. 70 km/hr.

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A train cover a distance in 50 minutes, if it runs at a speed of 48 km per hour on an average. The speed at which the train must run to reduce the time of journey to 40 minutes ?

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