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Winners from last weeks math problem, and the new problem of the week

Submitted by david.thacker on Fri, 11/20/2015 - 16:51


Triskaidekaphobia is an irrational fear of the number 13. Because of fear and superstition surrounding the number 13, it is common in tall buildings for the 13th floor to be skipped when installing elevators buttons, it is instead numbered 14. A particularly fearful hotel owner decided to skip floor 13, as well as, any multiples of 13 when numbering the floors. He did the same thing when numbering the rooms. If each floor has rooms numbered to 100 and the elevator has buttons numbered to 30, how many rooms does the hotel have?

(Note:  This is problem of the week #13 for this year. Solve at your own risk!!!)