Here is a short age puzzle to test whether you are reading carefully: “Three years ago, Jenny was 10 years old. How old is she in 2 years’ time?” It sounds simple, yet rushing the calculation can lead to a surprising number of different guesses.
Step 1: Find Jenny’s age today
We are told that Jenny was 10 three years ago. Three years have passed since then, so we add 3 to 10.
10 + 3 = 13. Jenny is 13 years old now.
Step 2: Move two more years forward
The question asks about two years from now, rather than two years after the earlier moment. Starting from Jenny’s present age, add another 2.
13 + 2 = 15.
The correct answer
Jenny will be 15 years old in two years’ time.
The useful trick with age puzzles is to draw a tiny timeline. Three years ago: 10. Today: 13. Two years from today: 15. That sequence makes the answer clear without a calculator.
People sometimes answer 12 by adding two years directly to the original age of 10. But that skips the three years that have already passed. Others forget that the question moves both backward and forward in time.
Whenever a riddle mentions “ago,” “now,” and “in the future,” first establish the present age, then move forward or backward as needed.
Final answer: 15 years old. How quickly did you work it out?


