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Q. The savings and expenditure ratios of A and B are 5: 3 and 4: 3 respectively. If the expenditure of A is one-third of the Expenditure of B and the total Expenditure of the two of them is Rs.3000, then what is the salary of A and B?
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Answer:
Let income of A and B be 3x and 2x respectively. Also, their expenditure is 5y and 3y.
Now, according to question,
3x - 5y = 1000 ------- (i) × 3
2x - 3y = 1000 ---------- (ii) × 5
9x - 15y - 10x + 15y = 3000 - 5000
Or, -x = -2000
Or, x = 2000
Then, income of A = 3x = 3 × 2000 = Rs. 6000
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