The incomes of A and B are in the ratio of 3:4 and their expenditures are in the ratio 4:5. If B saves…
Let the incomes be 45x and 60x. B saves one third of 60x, so his expenditure is 40x; A's expenditure is therefore 32x. Their savings are 13x and 20x, giving the ratio 13 : 20.
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The incomes of A and B are in the ratio of 3:4 and their expenditures are in the ratio 4:5. If B saves one third of his income, the ratio of their savings is
Answer and explanation
Correct answer C
Let the incomes be 45x and 60x. B saves one third of 60x, so his expenditure is 40x; A's expenditure is therefore 32x. Their savings are 13x and 20x, giving the ratio 13 : 20.
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