A train travelling with uniform speed crosses two bridges of lengths 300 m and 240 m in 21 s and 18 s respectively. Find the speed of the train?

A train travelling with uniform speed crosses two bridges of lengths 3

1.	A train travelling with uniform speed crosses two bridges of lengths 300 m and 240 m in 21 s and 18 s respectively. Find the speed of the train?
A.	72 km/h
B.	68 km/h
C.	65 km/h
D.	60 km/h
Answer» B. 68 km/h

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A train travelling with uniform speed crosses two bridges of lengths 300 m and 240 m in 21 s and 18 s respectively. Find the speed of the train?

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