I got the same answer as Melody, then I wondered about the wording of the question when I found Alice = 0.
So I wondered if it was SUPPOSED to say THIS:
john is twice as old as his friend peter.peter is 5 years older than alice. in 5 years. john will be 3 times as old as alice is NOW. how old is peter now?
J=2P (1)
P=A+5 (2)
J+5=3A (3)
1 in to 3 2P +5 = 3A Then sub 2 into the equation
2(A+5) +5 = 3A
2A + 15 = 3A
15 = A
Then P = A+5 = 20 and J = 2P=40 This is NOT what the question asked....this is the question I posted above....