A train 150 metre long takes 20 seconds to cross a platform 450 metre long. The speed of the train in, km per hour, is :

A train 150 metre long takes 20 seconds to cross a platform 450 metre

1.	A train 150 metre long takes 20 seconds to cross a platform 450 metre long. The speed of the train in, km per hour, is :
A.	108
B.	100
C.	106
D.	104
Answer» B. 100

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A train 150 metre long takes 20 seconds to cross a platform 450 metre long. The speed of the train in, km per hour, is :

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