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    Question

    Bag A and Bag B contain balls in the ratio of 7:6, while

    Bag B and Bag C have balls in the ratio of 2:3. If the average number of balls across all three bags is 22, determine the number of balls in Bag A.
    A 28 Correct Answer Incorrect Answer
    B 21 Correct Answer Incorrect Answer
    C 14 Correct Answer Incorrect Answer
    D 24 Correct Answer Incorrect Answer

    Solution

    Let the number of balls in bag A, bag B and bag C be ‘7x’, ‘6x’ and ‘9x’ respectively.

    7x + 6x + 9x = 22 × 3


    22x = 22 × 3, x = 3


    So, the number of balls in bag A = 7x = 21

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