Today is John's birthday. Three years from today he will be twice as old as he was 14 years ago. How old is John today ? Choose the most appropriate option.
A) 29 years
B) 26 years
C) 28 years
D) 31 years
E) 34 years
let John's age=x
x+3=2(x-14)
x=31
ANSWER:31 years
<result>D</result>
Today is John's birthday. Three years from today he will be twice as old as he was 14 years ago. How old is John today ?