Question

the ratio of incomes of two persons is 9:7. the ratio of thier expenses is 4:3. every person saves rupees 200, find the income of each​

Answer 1

Step-by-step explanation:

The income of two persons are 1400&1800

Answer 2

Step-by-step explanation:

let the income be 9x and 7x

and expense be 4y and 3y

now,expense for A =9x-4y

and expense for B =7x-3y

and expense is 200

9x-4y=200 ...........equation 1

7x-3y=200 ............equation 2

from1 and 2 we,get

9x- 4y= 7x- 3y

9x-7x=-3y+4y

2x=y

substitute value of y in any of the equation

9x-4×2x = 200

9x-8x=200

x=200

income of A =9×200

=1800rs

income of B =7×200

=1400rs

hope this helps you