The ratio of the ages of a man and his wife is 4:3. After 4 years, this ratio will be 9:7. If at the time of their marriage, the ratio was 5:3, how many years ago were they married?
Q1. The ratio of the ages of a man and his wife is 4:3. After 4 years, this ratio will be 9:7. If at the time of their marriage, the ratio was 5:3, how many years ago were they married?
Answer: 12 years
Explanation: Let's denote the man's age as 4x and the wife's as 3x. Using the given ratio after 4 years: (4x+4)/(3x+4) = 9/7.