Question 1144195
David is two years older than peter and five years older than John.Their ages add up to 44.  How old is John?
<pre>Let John's age be J
Then David's is: J + 5, and Paul's is: J + 5 - 2, or J + 3
With ages totaling 44 years, we get: J + J + 5 + J + 3 = 44
                                     3J = 36
                                     J, or {{{highlight_green(matrix(1,6, John, "is:", 36/3, "=", 12, years-old))}}}