The mean of the present ages of a father and his son is 31 years. After 20 years, the father's age will be double the son's age. What is the ratio of the present ages of the son and the father?

Subject: Mathematics | Topic: Algebra | Difficulty: MEDIUM

Options

1. (A) 3 : 7
2. (B) 7 : 24
3. (C) 5 : 21
4. (D) 2 : 5

Verified Answer

Option (B): 7 : 24

Practice complete mock tests for SSC, Banking & Railway exams at https://testx.in/questions/01a0bfc5-16d2-7907-9cdc-5a0244933aa8/the-mean-of-the-present-ages