Mathematics, 31.07.2019 14:00, xxtonixwilsonxx

The number of balls in box a is 1/2 of the number of balls in box b. 10% of the balls in box a and 10% of the balls in box b were moved to box c. as a result, the number of balls in box c increased by 20%. there are 72 balls in box c now. how many balls were there in box b at first?

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The number of balls in box a is 1/2 of the number of balls in box b. 10% of the balls in box a and 1...