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The ratio of Alan's apples to Don's apples was 3:5. When Alan gave 30 of his apples to Don, the ratio of Alan's apples to Don's apples became 1:5. Find the number of apples Alan had at first?

 Apr 25, 2021
 #1
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5x = 3y

5(x - 30) = y

 

5x = 3*5(x - 30) = 15(x - 30) = 15x - 450

 

10x = 450

x = 45 (Alan), y = 75 (Don)

 Apr 25, 2021

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