Oh, look! A box full of puppies. Since puppies are generally bigger than kittens, there are only eight of them. All of them are at least one colour of black, white, and tan. Five are black, five are white, and five are tan.

What is the maximum number of the seven colour combinations that could occur? What is the minimum number of the seven colour combinations that could occur?

Submit your answer to Gene Wirchenko <genew@telus.net>. Your answer should be in the form of a proof. That means to show how your answer must be correct. **The deadline is Wednesday, August 26, 2015 at noon Pacific Time.** I will post the answer shortly after.