The ratio of income of two persons is 9:7 and the ratio of their expenditure is 4:3 and each of them saves 2000 per month find their monthly moves
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let there income be 9x and 7x
expenditure be 4y and 3y
saving = income- expense
9x-4y =7x-3y
2x=y
that means
9x-8x = 2000
x=2000
monthly income would be 18000 and 14000
expenditure be 4y and 3y
saving = income- expense
9x-4y =7x-3y
2x=y
that means
9x-8x = 2000
x=2000
monthly income would be 18000 and 14000
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