Question

Monthly incomes of two persons are in the ratio 4 : 5 and their monthly expenses are in
the ratio 7:9. If each saves ? 50 per month find their monthly incomes
​

Answer 1

Step-by-step explanation:

Let the income of two persons be 4x and 5x and their expenses be 7y and 9y.

Then, 4x - 7y = 50 ... (i)

and 5x - 9y = 50 ... (ii)

Solving Eqs. (i) and (ii). we get

x = 100 and y = 50

Therefore, The income of persons are Rs.400 and Rs.500