In my ASVAB prep course, I make sure to present problems on rate.  This is a  section of the ASVAB that many students need help with.  As an ASVAB tutor, I see the importance of covering problems on rate.  Do you know how to solve this problem?  How many pages would be copied in 3 1/2 hours if 15 pages are copied in an hour?  The solution and explanation will be posted tomorrow.