Question

When i was 2 year old my brother was half my age now i 100 how old is he?

Answer 1

when u were 2 ,then your brother was half of your age i.e
$\frac{1}{2} \times 2 = 1$
so age difference = 2-1 = 1

so when u 100
he is 100-1=99

Answer 2

Hey mate here's your answer.....

2years = half of brother that is 1
Now she is 100 then the brother would be 99.

Hope it helps