Subject

    Quantitative Aptitude

    Topic

    Pipes & Cistern

    A can do a work in 10 days, B can do the same work in 15 days. If they work together, how long will it take them to finish the work ?

    ক)
    4
    খ)
    8
    গ)
    6
    ঘ)
    10

    Explanation

    Solution:  10×1510+15=10×1525\frac{{10 \times 15}}{{10 + 15}} = \frac{{10 \times 15}}{{25}} = 6 days.

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