Multiple choice general knowledge math & puzzles

How many times the number 1 comes in between 1 to 100.

  1. 11

  2. 9

  3. None of the above

  4. 1

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The digit 1 appears 20 times between 1 and 100: 1, 10, 11 (twice), 12-19 (eight times), and 21, 31, 41, 51, 61, 71, 81, 91 (nine more times). Since 20 isn't listed, 'None of the above' is correct.