Question

Income of A and B are in the ratio.
3:2 and the extenditen we in the
da u 5:3. It each saves de 1000 the B's
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Answer 1

Answer:

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The annual income of A and B are in the ratio 3: 4 and their annual expenditure are in the ratio 5:7. If each saves 15000 per month find their annual income.

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JUSTAGUIDE eNotes educator| CERTIFIED EDUCATOR

The annual income of A and B are in the ratio 3 : 4. If the income of A is 3x, the income of B is 4x. Their annual expenditure is in the ratio 5:7, if A's expenditure is 5y, B's expenditure is 7y. Each of them saves 15000 per month.

=> 3x - 5y = 15000 and 4x - 7y = 15000

3x - 5y = 15000

=> y = (3x - 15000)/5

Substituting in 4x - 7y = 15000

=> 4x - 7*(3x - 15000)/5 = 15000

=> 20x - 21x + 105000 = 75000

=> x = 30000

This gives the income of A as 90000 and of B as 120000

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Answer 2

Answer:

Step-by-step explanation:

Let A income=3x

"..B"= 2x

Let A expenditure=5y

"..B.."=3y

We know that :

Income - Expenditure = saving ..so

3x - 5y =1000

2x - 3y =1000

(Now u can solve these equations)