Multiple choice

The monthly incomes of two persons are in the ratio 2 : 3 and their monthly expenses are in the ratio 5 : 9. If each of them saves Rs 600 per month then the total of their monthly incomes are - दो व्यक्तियों की मासिक आय का अनुपात 2 : 3 है और उनके मासिक व्यय का अनुपात 5 : 9 है। यदि उनमें से प्रत्येक 600 रू. प्रति माह की बचत करता है तो उनकी मासिक आय का योग क्या है?

  1. Rs. 4800 4800 रू

  2. Rs. 4000 4000 रू

  3. Rs. 4500 4500 रू

  4. Rs. 4200 4200 रू

  5. Rs. 5000 5000 रू
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Incomes = 2x, 3x. Expenses = 5y, 9y. Savings: 2x - 5y = 600 and 3x - 9y = 600. From first: 2x = 600 + 5y → x = 300 + 2.5y. Substitute: 3(300 + 2.5y) - 9y = 600 → 900 + 7.5y - 9y = 600 → 900 - 1.5y = 600 → 1.5y = 300 → y = 200. Then x = 300 + 500 = 800. Incomes: 1600, 2400. Total = 4000. Option B is correct.

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