When I Was 10 Years Old - ANSWER for Puzzle

When I was 10 years old, my brother was half my brother was half my age. Now I'm 30. How old is he?



This is a simple question, but many will answer it wrongly.

ANSWER


25 is the age of brother.

Explanation
The difference between the brothers is 5. So whatever be the age of elder brother, the younger brother's age will be 5 less than elder brother's age. (But some people answer it wrongly by thinking that 5 is half of 10. So at the age of 30, the younger brother's age will be 15. But that is a wrong and illogical answer).