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Pls explain and solve this question

Answer»

Ratio of incomes of A and B = 5 : 3 = 5x : 3x

Ratio of expenses of A, B and C =  5y : 5y : 2Y

C’s EXPENDITURE = 2y = 2000
so,
y = 1000

Therefore A’s expenditure = 5y = 5000

Given that B’s saving = 700

3x – 5y = 700

3x = 700 + 5000

3x = 5700

x = 1900

A’s income = 5x = 5 x 1900 = 9500

A’s saving = 9500 – 5000 = 4500



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