Brain Teasers
Number Nine
A new medical building containing 100 offices has just been completed. Clyde was hired to paint the numbers 1-100 on the doors. How many times will Clyde have to paint the number nine?
Answer
Twenty times.9, 19, 29, 39, 49, 59, 69, 79, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99
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