Question

The monthly income of aryan and babban are in the ratio 3:4 and their monthly expenditure are in the ratio 5:7 . If each save rs. 15000 per month ,find their monthly incomes using the matrix method

Answer 1

Answer:

let 3x and 4x be the monthly income of Aryan and babban and

5y and 7y be the monthly expenditure of Aryan and babban

since each saves 15000 per month

3x - 5y = 15000 monthly saving of Aryan

4x - 7y=15000 monthly saving of babban

the above equation can be written in matrix form

after than see the picture I have uploaded