Five years ago, the ratio of the ages of a father and his son was 5 : 3. Which of the following cannot be the ratio of their ages 10 years from now?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 7 : 3
As we know in the ratios, if the same number is added to the ratio then the difference between the two numbers of the new ratio is always less than or the difference between the two numbers of the previous ratio.
So, from the options, we can see that,
⇒ 7 - 3 > 5 - 3
So, 7 : 3 can be the new ratio.