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Multiple Choice Questions

There are two places A and B which are separated by a distance of 100k Two boats starts form both th...........

Quant (SSC) Boats and Streams
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    There are two places A and B which are separated by a distance of 100k. Two boats starts form both the places at the same time towards each other. If one boat is going downstream then the other one is going upstream, if the speed of A and B is 12km/hr. and 13km/hr. respectively. Find at how much time will they meet each other.

    10hrs.

    Incorrect Answer

    4 hrs.

    Correct Answer

    8 hrs.

    Incorrect Answer

    6 hrs.

    Incorrect Answer
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    Explanation:

    Downstream = (12+x)km/hr
    Upstream = (13-x)km/hr
    Time = Distance / Relative speed
    Relative speed = 12 + x + 13 – x  = 25 km/hr
    Time = 100/25 = 4 hours

    By: Amit Kumar
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