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    25 women can complete a task in 60 days. After how many days from the start of the task should 5 more women join them so that the task is completed in
    Question

    25 women can complete a task in 60 days. After how many days from the start of the task should 5 more women join them so that the task is completed in 55 days?

    A.

    27

    B.

    30

    C.

    25

    D.

    20

    Correct option is B

    Given:

    25 women can complete a task in 60 days.

    We need to determine after how many days 5 more women should join so that the task is completed in 55 days.

    Formula Used:

    M1D1H1W1=M2D2H2W2 \frac{M_1 D_1H_1}{W_1}=\frac{M_2 D_2H_2}{W_2}

    M = Number of Workers, D = Days , H = Hours,   W = Work

    Solution:

    Let , 5 more women join the work after x days.

    25×60 25 \times 60  = 25x + 30(55 - x)

    1500 = 25x + 1650 - 30x 

    -5x + 1650 = 1500

    -5x = -150

    x = 30 days

    5 more women should join after 30 days.

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