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    Question

    Aman, Bhanu, and Chinu can

    complete a piece of work individually in 20 days, 30 days, and 60 days, respectively. How many days will Aman take to finish the work if Bhanu and Chinu assist him every third day?
    A 15 days Correct Answer Incorrect Answer
    B 18 days Correct Answer Incorrect Answer
    C 24 days Correct Answer Incorrect Answer
    D 12 days Correct Answer Incorrect Answer

    Solution

    ATQ,

    Work Rates: Aman completes 1/20 of the work per day. Bhanu completes 1/30 of the work per day. Chinu completes 1/60 of the work per day.

    Work Schedule:

    Total Time: In 3 days, 1/5 of the work is completed. Total work = 1 unit. Cycles needed = 1/(1/5) = 5. Total time = 5×3 = 15 days.

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