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A 120 m long train is moving in a direct...

A 120 m long train is moving in a direction with speed 20 m/s. A train B moving with 30 m/s in the opposite direction and 130 m long crosses the first train in a time

A

6s

B

36s

C

38s

D

5s

Text Solution

Verified by Experts

The correct Answer is:
D

Total distance=250 m,Relative velocity= 50m/s, t=`250/50` =5s
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