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Speed of two train are 90 km/hr and 72 k...

Speed of two train are 90 km/hr and 72 km/hr. If both are running in opposite direction than crosses each other in 5 sec. A persoon sitting in the faster train crosses the solution train in the same direction in 25 sec. Find the length of first train.

A

125 m

B

100 m

C

150 m

D

135 m

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The correct Answer is:
A
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