HardHow Many Riddle
A new medical building containing 100 offices had just been completed. Mark was hired to paint the numbers 1 to 100 on the doors. How many times will Mark have to paint the number nine?
Riddle
A new medical building containing 100 offices had just been completed. Mark was hired to paint the numbers 1 to 100 on the doors. How many times will Mark have to paint the number nine?
Choose an answer
A.11
B.19
C.10
D.The answer is 20! 9, 19, 29, 39, 49, 59, 69, 79, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99.
Hint: It's a 3-word phrase with 11 letters, starting with "T".
Answer
The answer is 20! 9, 19, 29, 39, 49, 59, 69, 79, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99.
Why this is the answer
Counting every appearance of the digit 9 (both as a tens digit in 90-99 and as a units digit) across 1-100 totals 20.
This riddle is filed under How, What, Why Riddles and rated Hard.