Question

In: Math

The monthly incomes of two persons are in the ratio 4 : 5 and their monthly expenditures are in the ratio 7 : 9

 The monthly incomes of two persons are in the ratio 4 : 5 and their monthly expenditures are in the ratio 7 : 9. If each saves 50 per month, find their monthly incomes.

Solutions

Expert Solution

Let the monthly income of one person be  and that of the other be 

Let the monthly expenses of one person be  and that of other be 

 

According to the question,

 

On solving both equations, we get

 

Therefore,

Monthly income of one person



Monthly income of the other person

 

So, the sum of their monthly incomes

 

Hence, this is the answer.


here, X=50 AND Y=100.

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