Question

The ratio of income to expenditure 7:5 if she saves 2000 month what is her annual income

Answer 1

Let income=I, Expenditure=E

Income expenditure ratio is 7:5

Income=7000

Given in question I/E=7/5

Or

7000/E=7/5

Or E=(7000×5)/7

E=5000 i e expenditure so

Savings = Income-Expenditure

7000–5000=2000

Answer 2

7x=income

5x=expenditure

income-expenditure=Saving

7x-5x=2000

2x=2000

x=1000

income=7x

=7*1000

=7000

annual income=12*7000

=84000

Hope it helps.........