Multiple choice general knowledge

How many '9's are there in between "1-100"

  1. 10

  2. 19

  3. 14

  4. 16
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Counting the digit 9 appearing in numbers from 1 to 100: it appears in 9, 19, 29, 39, 49, 59, 69, 79, 89 (9 times), plus 90-99 (11 times), totaling 20 occurrences. However, if counting unique numbers containing a 9, there are 19 such numbers. The question is ambiguous but the claimed answer B assumes the latter interpretation.

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