eight years from now,Oana will be twice as old as her brother is now.Oana is now 12 year old. How old is her brother now?

Question

f-2
g-4
h-6
j-10
k-16

12/2=6
or 12+8=20
20/2=10

Answer 1

let her brother's present age be x

12 + 8 = 2x
2x = 20
x = 10