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    Question

    The efficiency of P is 80% of the efficiency of Q. If Q

    can type 150 pages in 30 days, then find the number of days taken by P alone to type 300 pages.
    A 35 days Correct Answer Incorrect Answer
    B 45 days Correct Answer Incorrect Answer
    C 75 days Correct Answer Incorrect Answer
    D 58 days Correct Answer Incorrect Answer

    Solution

    ATQ, Number of pages typed by Q in 1 day = 150 ÷ 30 = 5
    So, number of pages typed by P in 1 day = 5 × 0.8 = 4
    So, time taken by P alone to type 300 pages = 300 ÷ 4 = 75 days

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