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1. Two stations A and B are 110 km apart on a straight line. One train starts from A at 7 a.m. and travels towards B at 20 kmph. Another train starts from B at 8 a.m. and travels towards A at a speed of 25 kmph. At what time will they meet?





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  • By: guest on 01 Jun 2017 05.48 pm
    Suppose they meet x hours after 7 a.m. Distance covered by A in x hours = 20x km. Distance covered by B in (x - 1) hours = 25(x - 1) km. 20x + 25(x - 1) = 110 45x = 135 x = 3. So, they meet at 10 a.m.
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