incomes of a and b are in the ratio of 2 : 3 and each of them saves rs. 300. find a’s income if the ratio of their expenditure is 1:27 ? a) rs. 300 b) rs. 600 c) rs. 650 d) rs. 400 answer :
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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.
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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