The ratio of the income of two persons is 9:7 , and the ratio of their expenditure is 4:3. Each of them saves rs200 yearly . Find their yearly income.
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The ratio of the income of two persons is 9:7 , and the ratio of their expenditure is 4:3. Each of them saves rs200 yearly . Find their yearly income.
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Answer:
9x,7y
9x-4x=200
7y-3y=200
5x=200
4y=200
X=40
y=50
9x=360
7y=350