Ok it's that time again. Back to the salt mines so put your thinking caps on and get that brain matter going. Since you will probably be stopping at the golden arches this morning heres a tasty problem for you.
At McDonalds you can order Chicken McNuggets in boxes of 6, 9, and 20. What is the largest number such that you can not order any combination of the above to achieve exactly the number you want?
Remember to show your solution.!
