Question 1150490
Paul is 12 years older than Colin. Caroline is 3 years younger than Colin. If the total of their ages is 87, how old is the youngest of them?
<pre>After reading you should realize that Caroline is the youngest. Therefore, we need to find Caroline's age, and NO-ONE else's.

Let Caroline’s age be C
Then Colin’s is: C + 3, and Paul’s is: C + 3 + 12 = C + 15
We then get: C + C + 3 + C + 15 = 87
3C = 69
C, or Caroline is: {{{highlight_green(matrix(1,4, 69/3, "=", 23, years-old))}}}
That's IT!!