[ Arithmetic. Mental calculation, etc.]

Liza is 8 years older than Nastya. Two years ago, she was three times as old as Nastya. How old is Liza?
Think about how old the girls were two years ago.

## Solution

Two years ago, Lisa was also 8 years older than Nastya. And if at that time she was also 3 times older, then Nastya was 4 years old, and Lisa was 12. So, Lisa is 14 years old now.

## Answer

14 years old.