


Use simple problems like this to learn to solve problems. Complex problem are a collection of simple problems. All problem solutions have the solution structure shown here. The words change, the symbols change, the concepts change and the numbers change. The problem solving process does not change!
Once you have learned how to solve one problem, you have learned how to solve all problems. Learn how to solve problems! 
The problem is one of the problems included in Math Problems of the week shown at http://www.mbnet.mb.ca/~jfinch/september.html The solution shown here extends the use of one of the many excellent problems available at the site. 