1.

 A 200 m long rain is running at a speed of 54 km/hr. On the parallel and a different track, another train 300 m long is running at a speed of 72 km/hr. Both the trains are running in the same directio

A. 90 sec
B. 100 sec
C. 120 sec
D. 150 sec
Answer» C. 120 sec


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