Answer:
The ratio of monthly income to the savings in a family is 5 : 4 If the savings be $9000, find the income and the expenses.
2. What should be added to the ratio 5 : 11, so that the ratio becomes 3 : 4?
3. Two numbers are in the ratio 7 : 5. If 2 is subtracted from each of them, the ratio becomes 3 : 2. Find the numbers.
4. Two numbers are in the ratio 3 : 7. If their sum is 710, find the numbers.