When Miguel was 6 years old, his little sister, Leila, was half his age. If Miguel is 40 years old today, how old is Leila?
Answer
Leila is 37 years old.
When Miguel was 6 years old, Leila was 3 years old, so Leila is 3 years younger than Miguel. When Miguel is 40 years old, Leila will be 37 years old.