Question

the annual incomes of 2 persons are in ratio 3;4 and their expenditures in ratio 5;7
if each saves 15000 annually find their annual incomes

Answer 1

Answer:

Annual income is 90000 and 120000

Step-by-step explanation:

lets the income be 3x and 4x

and expenditure be 5y and 7y receptively

from the question

3x-5y=15000 --------------1

4x-7y=15000 ---------------2

Solving 1 and 2 we get x=30000 and y=15000

if x=30000

then incomes are 3x and 4x i.e 90000 and 120000