- The person was born in 1995 B.C. (Before Christ).
- In 1990 B.C., they were 5 years old (1995 - 1990 = 5), but the riddle states 15, so this is incorrect.
- Let’s re-evaluate: If the person is 15 in 1990 and 10 in 1995, their age is decreasing as time moves forward.
- This is impossible in the standard A.D. (Anno Domini) calendar.
- The only logical explanation is that the years are B.C. (Before Christ), where the year numbers decrease as time moves forward.
- So, if the person is 15 in 1990 B.C., then in 1995 B.C. (which is 5 years earlier), they would be 10 years old (15 - 5 = 10).
- Therefore, the person was born in 2005 B.C. (1990 + 15 = 2005 B.C.).
- In 1995 B.C., they are 10 years old (2005 - 1995 = 10).
Parent Tip: Review the logic above to help your child master the concept of hard brain teasers and answers.
