Question
The monthly incomes of 'A' and 'B' are in the ratio of
3:4, respectively. Both 'A' and 'B' have identical monthly expenditures, while their monthly savings are in the ratio of 1:2. Calculate the percentage of 'B's expenditure in relation to his total monthly income.Solution
Let the monthly income of βAβ and βBβ be Rs. β3xβ and Rs. β4xβ respectively. Let the expenditure of βAβ and βBβ be Rs. βyβ. ATQ, (3x β y)/ (4x β y) = 1/2 Or, 6x β 2y = 4x β y So, 2x = y So, expenditure of βBβ = Rs. β2xβ Required percentage = (2x/4x) Γ 100 = 50%
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