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    Question

    Worker A is thrice as efficient as worker B. They can

    together finish a task in 18 days. How many days will A alone take to finish the work?
    A 24 days Correct Answer Incorrect Answer
    B 42 days Correct Answer Incorrect Answer
    C 12 days Correct Answer Incorrect Answer
    D 48 days Correct Answer Incorrect Answer

    Solution

    A              B 3              1 (Efficiency). When he works together – 4 =18 1=72 A alone take to finish work = 72/3=24 days.

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