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Question
If 3x + 2y : 5x + 6y = 1 : 2, find the ratio of x : y.
Sum
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Solution
`(3x + 2y)/(5x + 6y) = 1/2`
2(3x + 2y) = 1(5x + 6y)
6x + 4y = 5x + 6y
6x − 5x = 6y − 4y
x = 2y
x : y = 2 : 1
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