| Monthly incomes of A and B are in the ratio of 4: 3 and their expenses bear the ratio 3: 2. Each of them save Rs. 6000 at the end of the month, then the monthly income of A is |
A) Rs. 12000
B) Rs. 24000
C) Rs. 30000
D) Rs. 60000
Correct Answer: B
Solution :
| Let the monthly incomes of A and B be Rs. 4x and Rs. 3x, respectively and their expenditures be Rs. 3y and Rs. 2y, respectively. |
| \[\therefore \] \[4x-3y=6000\] and \[3x-2y=6000\] |
| \[\Rightarrow \] \[4x-3y=3x-2y\]\[\Rightarrow \]\[x=y\] |
| \[\therefore \] \[4x-3y=6000\]\[\Rightarrow \]\[x=6000\] |
| \[\Rightarrow \] A's monthly income \[=4x=Rs.\,24000\] |
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