The incomes of A and B are in the ratio 1 2 and their expenditures are in the ratio 2 5 If A saves R...........

Quantitative Aptitude ( CCS) Ratio, Proportion

The incomes of A and B are in the ratio 1 : 2 and their expenditures are in the ratio 2 : 5. If A saves Rs 20,000 and B saves Rs 35,000, what is the total income of A and B ?

60,000

70,000

80,000

90,000

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Explanation:

Income of A = x, of B = 2x
Expenditure of A = 2y, of B = 5y
Savings is (income – expenditure). So
x – 2y = 20,000
2x – 5y = 35,000
Solve the equations, x = 30,000
So total = x+2x = 3x = 3*30,000 = 90,000