A train 300 metres long takes 40 seconds to cross a platform 900 metres long. The speed of the train in, km per hour is :

A train 300 metres long takes 40 seconds to cross a platform 900 metre

1.	A train 300 metres long takes 40 seconds to cross a platform 900 metres long. The speed of the train in, km per hour is :
A.	02 km/hr
B.	04 km/hr
C.	06 km/hr
D.	08 km/hr
Answer» E.

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A train 300 metres long takes 40 seconds to cross a platform 900 metres long. The speed of the train in, km per hour is :

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