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Income of A and B are in the ratio 4 : 3 and their annual expenses are in the ratio 3 : 2. If each save Rs. 60000 at the end of the year, the annual income of A is = ?

a) Rs. 120000
b) Rs. 150000
c) Rs. 240000
d) Rs. 360000

Answer: c
Explanation:
  A : B
Income 4x : 3x
  Expenses   3y : 2y
Saving 6000   :   6000

Income = Expenses + Saving
$$ \frac{{4x – 60000}}{{3x – 60000}} = \frac{3}{2}$$
8x – 120000 = 9x – 180000
x = 60000
Income of A = 4 × 60000 = 240000

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