The ratio of income of A and B is 3:5. The sum of their expenditures is Rs. 18,000, and the savings of A is equal to the expenditure of B. What is the expenditure of A?
- Rs. 10,500
- Rs. 7,500
- Rs. 12,000
- Rs. 9,000
Explanation
Let the incomes of A and B be 3x and 5x, respectively.
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Let expenditures of A and B be and .
-
Given:
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Savings of A = Expenditure of B →
-
-
Substitute into savings equation:
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Income of A =, Income of B =
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Expenditure of A = 18,000 – Expenditure of B = 18,000 – 7,500 = 10,500
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