1.

A 400 m long train crosses a 300 m long bridge in 70 seconds. Then the speed of the train is -

A. 72 किमी प्रति घंटे
B. 54 किमी प्रति घंटे
C. 18 किमी प्रति घंटे
D. 36 किमी प्रति घंटे
Answer» E.


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