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.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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