A train 700 m long is running at the speed of 72 km per hour. If it crosses a tunnel in 1 minute, then the length of the tunnel is ?

A train 700 m long is running at the speed of 72 km per hour. If it cr

1.	A train 700 m long is running at the speed of 72 km per hour. If it crosses a tunnel in 1 minute, then the length of the tunnel is ?
A.	500 m
B.	550 m
C.	600 m
D.	700 m
Answer» B. 550 m

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A train 700 m long is running at the speed of 72 km per hour. If it crosses a tunnel in 1 minute, then the length of the tunnel is ?

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