The monthly income of Komal and Asha are in the ratio of 4 : 3. Their monthly expenses are in the ratio of 3 : 2. However,
The monthly income 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?
(a) Rs. 8,400 (b) Rs.5,600 (c) Rs. 4,200 (d) Rs.2,800
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(c) Let monthly income of Komal and Asha be 4x and 3x
Also, let monthly expenses of Komal and Asha be 3y and 2y.
Now, 4x – 3y = 600 ......(i)
3x – 2y = 600 .....(ii)
Solving (i) and (ii), x = 600 and y = 600
∴ Total monthly income = (4 + 3)(600) = Rs.4200
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