Question

ratio of incomes of 2 people is 9:7 and ratio of expenditure is 4:3. If each saves RS 2000 per month .find monthly incomes

Answer 1

let income of one is 9x and income of other is 7x
also let expenditure of one was 4y and other was 3y
therefore ,
we know
income _ expenditure=saving
9x_4y=2000....equ-1
also, 7x_3y=2000...eau 2
solve these two equ and find value of x
this will be ur answer