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Two trains of length 100m are running on parallel tracks . One overtake the other I in 20s when they are moving in the same direction and crosses the other in 10s when they are in opposite direction . The velocities of the train are

Two trains of length 100m are running on parallel tracks . One overtake the other I in 20s when they are moving in the same direction and crosses the other in 10s when they are in opposite direction . The velocities of the train are

Grade:11

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