Question
Peter is three times as old as Sue, who is four years older than Joe. In 20 years, Peter will be twice as old as Joe. How old is Peter now?
Answers
Steve
p=3s
s=j+4
p+20 = 2(j+20)
Now just solve for p.
s=j+4
p+20 = 2(j+20)
Now just solve for p.