A girl is 12 years old and her brother is twice her age. When the girl is 50 years old, how old will her brother be? (Enter numerical values only).

Question

Quizplus · Accepted Answer

The Answer is 62
At the beginning of the problem, the brother is twice his 12-year-old sister's age (2 × 12 = 24). So, the brother is 24 - 12 = 12 years older than the girl.
When the girl is 50, her brother will still be 12 years older than her.
50 + 12 = 62
He will be 62 years old.

A Girl Is 12 Years Old and Her Brother Is