Multiple choice

The monthly incomes of Komal and Asha are in the ratio of 4 : 3. Their monthly expenses are in the ratio of 3 : 2. However, both save Rs. 600 per month. What is their total monthly income?

  1. Rs. 8,400

  2. Rs. 5,600

  3. Rs. 4,200

  4. Rs. 2,800
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Let incomes be 4x and 3x. Let expenses be 3y and 2y. 4x - 3y = 600 and 3x - 2y = 600. Solving the system: 8x - 6y = 1200 and 9x - 6y = 1800. Subtracting gives x = 600. Total income = 7x = 4200.

Keep practicing — related questions