What will the Income of X? If

Incomes of x and y are in the ration 4:3. Their expenditures are in the ratio 12:7. Both save Rs.3200 at the end of the month, then the income of x is:

  1. Rs.6000
  2. Rs.8000
  3. Rs.2000
  4. Rs.4000
Monis Rasool Professor Asked on 7th July 2015 in Maths.
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1 Answer(s)

Answer: (2) Rs.8000
Explanation:-
Let be the income of X is 4A and income of Y is 3A
And, The total expenditure of X & Y be 12B & & 7B
Then,
4A – 12B = 3200                           ……………………….. (1)
3A – 7B    = 3200                          ………………………………. (2)
Solve equation (1) & (2)
B = 400
Put the value of B in equation (1)
4A – 12 x 400 = 3200
4A = 3200 + 4800
4A = 8000
Thus, the income of X = 4A = Rs.8000
Hence, the answer is (2) Rs.8000.

Anurag Mishra Professor Answered on 9th July 2015.
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