Peter is 4 and his little brother is 2, half is age. How older will Peter's little brother be when he is 100?
Common Wrong Answers
“100”
This guess assumes that the little brother will reach the same age as Peter at 100, ignoring the age difference that remains constant.
“96”
This guess incorrectly assumes that the age difference somehow decreases over time, which is not possible; the age difference will always be 2 years.
“90”
This guess mistakenly suggests that the little brother's age will somehow be less than the constant 2-year difference, which does not change as they both age.
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