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    Question

    Ayaan and Kabir started working together on a task. Ayaan

    does 4 units per day and Kabir can finish the full task in 25 days alone. The total work is 100 units. Calculate the time taken by both working together.
    A 21/11 Correct Answer Incorrect Answer
    B 25/2 Correct Answer Incorrect Answer
    C 33/5 Correct Answer Incorrect Answer
    D 23/4 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let, the time taken by Ayaan and Kabir to do the work be ‘x’ days.

    Units of work done by Kabir in a day = 100 / 25 = 4 units

    So, 100 / x = 4 + 4 = 8

    100 = 8x

    x = 100 / 8 or 25/2

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