SOLUTION: Jack’s father is three times as old as Jack. Five years ago, the sum of there ages was 34. How old is Jack’s father now?

Question 1205458: Jack’s father is three times as old as Jack. Five years ago, the sum of there ages was 34. How old is Jack’s father now?

Found 2 solutions by josgarithmetic, MathLover1:
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
J/3, Jack's age now
J, his father's age now

Five years ago:

Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

let Jack’s age be and Jack’s father age
if Jack’s father is three times as old as Jack, we have
...eq.1
if five years ago, the sum of there ages was , we have
...eq.2
substitute from eq.1
...solve for

go to
...eq.1, substitute x

Jack’s father is years old now

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