SOLUTION: Peter and Paul are two friends. The sum of their ages is 42 years. Peter is twice as old as Paul was when Peter was as old as Paul is now. What is the present age of Peter?

Question 395148: Peter and Paul are two friends. The sum of their ages is 42 years. Peter is twice as old as Paul was when Peter was as old as Paul is now. What is the present age of Peter?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Peter and Paul are two friends. The sum of their ages is 42 years. Peter is twice as old as Paul was when Peter was as old as Paul is now. What is the present age of Peter?
...
peter's age = x
paul's age = y
...
x+y =42......................1
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paul's age = y now
Peter = 2x
y=2x.........................2
...
plug value of y in(1)
x+y=42
x+2x=42
3x=42
/3
x=14 years. Peter's age
Paul's age = 28 years
...
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