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Train A crosses a pole in 25 sec. and tr...

Train A crosses a pole in 25 sec. and train B crosses a pole in 1 min 15 sec. Length of train A is half of the length of train B. Find out the ratio of speed of A & B ?

A

`3:2`

B

`3:4`

C

`4:3`

D

cannot be determined

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The correct Answer is:
A
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