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Train - A can cross a 400m long platform...

Train - A can cross a 400m long platform in 36 seconds. Train - B crosses train-A in 66 seconds while running in same direction and train - B crosses a pole in `(72)/(7)` seconds. If ratio of length of train - A to train - B is 5:6, then find time taken by train - A to cross a pole.

A

A)12 seconds

B

B)17 seconds

C

C)11 seconds

D

D)14 seconds

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The correct Answer is:
A
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