Question

After 12 years I shall be 3 times as old as I was 4 years ago. Then my present age is equal to:(A) 12 years
(B) 18 years(C) 24 years
(D) 30 years

Answer 1

let my present age be x
12+x=3(x-4)
12+x=3x-12
2x=24
x=12