Question 1
10 years ago, A was half as old as B. In 5 years, what will be the age difference between B and A?
10 years ago: A was 16, B was 22. Check: 16 = ½ × 22 ✓
Present ages: A = 26, B = 32
In 5 years: A = 31, B = 37
Age difference = |37 - 31| = 6
(Age difference stays constant over time = B - A = 6)
Present ages: A = 26, B = 32
In 5 years: A = 31, B = 37
Age difference = |37 - 31| = 6
(Age difference stays constant over time = B - A = 6)