New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    A factory produces 800 units of product A in 5 days. If

    the production rate increases by 25% after 3 days, how many days will it take to produce a total of 1,600 units?
    A 8.6 days Correct Answer Incorrect Answer
    B 12 days Correct Answer Incorrect Answer
    C 14 days Correct Answer Incorrect Answer
    D 15 days Correct Answer Incorrect Answer
    E 20 days Correct Answer Incorrect Answer

    Solution

    Initial production rate = 800 units / 5 days = 160 units/day. Production in the first 3 days = 3 * 160 = 480 units. Remaining units = 1,600 - 480 = 1,120 units. Increased rate after 3 days = 160 * 1.25 = 200 units/day. Days to produce 1,120 units at 200 units/day = 1120 / 200 = 5.6 days. Total days = 3 + 5.6 = 8.6 days (approx). Correct answer: A) 8.6 days

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