Ready for a pop quiz?

This quiz is taken from the book Priceless by William Poundstone. It is not designed to determine your IQ level but  rather how you make decisions. This quiz is only 3 questions so it should take about a minute to finish.puzzled

Are you ready?  OK, GO!

1. A gallon of preconditioner and rinse cost $110.00. The preconditioner costs 100.00 more than the rinse. How much does the rinse cost?  _________________________

2. It takes 5 Cimex machines 5 minutes to clean 5 empty hotel rooms. How long will it take 100 Cimex machines to clean 100 rooms?  _____________________

3. In a large hotel ballroom there is a section of mold on the carpet. Every day the mold doubles in size. If it takes 48 days to cover the entire room, how long would it take to cover half of the room? ________________________

OK now you can respond with your answers by replying to this post below in the “comments” section. Or if you don’t want to share your answers publicly just email me at

I will respond with the correct answers a few days after this is posted.  I will explain the significance of this quiz and the deeper meaning behind it which can dramatically affect your pricing.

Have fun!

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