ANSWER:
Let’s solve it:
If 20 years ago, the person was 20 years old.
That means now they are: 20 + 20 = 40 years old.
20 years from now, they will be: 40 + 20 = 60 years old.
Final Answer: 60 years old.
If you managed to solve this without breaking a sweat, then congratulations! You’re doing great.