The incomes of A and B are in the ratio of 7:5. Their expenses are in the ratio of 9 : 8. An
increase of A's expenditure by 100 and decrease of B's expenditure by * 200 makes their
savings 400 each. Find their incomes.
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11
Answer:
1400,1000
Step-by-step explanation:
Since the ratio of A and B are in the ratio of 7:5, So we can assume their income are 7x and 5x and their expenditure as 9y and 8y.
According to the given condition,
7x - 9y = 500 [A's expenditure increased by 100}
5x - 8y = 200 [Decrease by 200]
On solving (i) * 8 & (ii) * 9, we get
56x - 72y = 4000
45x - 72y = 1800
--------------------------
11x = 2200
x = 200
Therefore:
Income of A = 1400
Income of B = 1000
Hope it helps!
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