Question

Andrew, Mariam and Piet are friends. Andrew is three years older than Mariam. Mariam is seven years younger than Piet.. If Piet is 27 years old then how old is Andrew?

Answer 1

Let's denote the ages of Andrew, Mariam, and Piet as follows:

- Piet's age = 27 years
- Mariam's age = Piet's age - 7 years = 27 - 7 = 20 years
- Andrew's age = Mariam's age + 3 years = 20 + 3 = 23 years

Therefore, Andrew is 23 years old.