A train goes from Ballygunge to Sealdah at an average speed of 20 km/hour and comes back at an average speed of 30 km/hour. The average speed of the train for the whole journey is

A train goes from Ballygunge to Sealdah at an average speed of 20 km/h

1.	A train goes from Ballygunge to Sealdah at an average speed of 20 km/hour and comes back at an average speed of 30 km/hour. The average speed of the train for the whole journey is
A.	27 km/hr
B.	26 km/hr
C.	25 km/hr
D.	24 km/hr
Answer» E.

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A train goes from Ballygunge to Sealdah at an average speed of 20 km/hour and comes back at an average speed of 30 km/hour. The average speed of the train for the whole journey is

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