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    Question

    15 boys can finish a task in 8 days while 3 men can

    finish the same task in 4 days. In how many days can 2 boys and 3 men together finish the task?
    A 12 days Correct Answer Incorrect Answer
    B 10 days Correct Answer Incorrect Answer
    C 18 days Correct Answer Incorrect Answer
    D 15 days Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    15B × 8 = 3M × 4 where B = boys and M = men Or, 1M = 15B × 8 / 3 × 4 = 10B Therefore, 2B + 3M = 2B + 3 × 10B = 2B + 30B = 32B Therefore, 32 boys can finish the work in 8 days.

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