A) Rs. 2400
B) Rs. 1800
C) Rs. 2000
D) Rs. 3600
Correct Answer: A
Solution :
Let monthly incomes of A's and B's are 4x and 3x and monthly expenditures of A's and B's are 3y and 2y. Each saving \[=Rs.\,600\] \[\because \] \[\text{Income}-\text{Expenditure}=\text{Saving}\] \[\therefore \] \[4x-3y=600\] ?(i) \[3x-2y=600\] ?(ii) On solving Eqs. (i) snd (ii). We get \[x=600\] \[\therefore \] A's income \[=4x\] \[=4\times 600=Rs.\,2400\]You need to login to perform this action.
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