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?

1 answer

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.