Chris and Jill were married. On their marriage day, Chris was three times as old as Jill. 21 years later, Chris was only 2 times as old as Jill. What was their age when they were married?
Hint:
c= Chris’ age at marriage
j= Jill’s age at marriage
c = 3j at marriage
c + 21 = 2j + 42
…you take it from here
Answer
Chris was 63.
Jill was 21.
c = 3j at marriage
c + 21 = 2j + 42
c = 2j + 21
(3j) = 2j + 21
j = 21