The incomes of A and B are in the ratio of 3:2 and their expenses are in the ratio of 5:3. If each of them saves Rs.3000, then A's income (in Rs.) isA और B की आय का अनुपात 3:2 है और उनके व्यय का अनुपात 5:3 है। यदि उनमें से प्रत्येक 3000 रुपये की बचत करता है, तो A की आय (रुपये में) कितनी है?
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Correct answer: D. ₹18000
Explanation
Let incomes be 3x, 2x and expenses 5y, 3y. Then 3x − 5y = 3000 and 2x − 3y = 3000. Multiplying: 6x − 10y = 6000 and 6x − 9y = 9000, so y = 3000 and x = 6000. A's income = 3x = ₹18000.मान लीजिए आय 3x, 2x और व्यय 5y, 3y हैं। तब 3x − 5y = 3000 और 2x − 3y = 3000। गुणा करने पर: 6x − 10y = 6000 और 6x − 9y = 9000, अतः y = 3000 और x = 6000। A की आय = 3x = ₹18000।More Mathematical Reasoning and Aptitude questions
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