Question 1178986

Jillian is five years younger than Ciane. Four years ago, the sum of their ages was 25. How old are they now?
<pre>Let Ciane's age be C
Then Jillian's is: C - 5
Four years ago, Ciane and Jillian were C - 4, and C - 5 - 4, or C - 9, respectively
We then get: C - 4 + C - 9 = 25
2C - 13 = 25
2C = 38
Ciane's age, or {{{highlight_green(matrix(1,6, C, "=", 38/2, "=", 19, years-old))}}}
Now, you should be able to find Jillian's age.</pre>