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    Question

    A, B and C together can do a work in p/13 days, A and B

    together can do the work in p/10 days and B alone can do the work in p/4 days. If C takes 20 days more than A to complete the work alone, then find the value of p.
    A 520 Correct Answer Incorrect Answer
    B 115 Correct Answer Incorrect Answer
    C 120 Correct Answer Incorrect Answer
    D Can't be determined Correct Answer Incorrect Answer
    E 160 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Given Work Rates:

    Find Work Rates:

    Use the Given Condition:

    Solve for p: p = 120

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