Question
A train leaves Mumabai at 9 am at a speed of 40 kmph. After one hour, another train leaves Mumbai in the same direction as that of the first train at a speed of 50 kmph. When and at what distance from Mumbai do the two trains meet?
Answer: Option C
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When the second train leaves Mumbai the first train covers 40 * 1 = 40 km
So, the distance between first train and second train is 40 km at 10.00amTime taken by the trains to meet = Distance / relative speed = 40 / (50 -40) = 4 hoursSo, the two trains meet at 2 p.m. The two trains meet 4 * 50 = 200 km away from Mumbai.
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