Multiple choice softskills creativity

If you were to write down all the numbers from 1 to 100 inclusive, how many 9s would you have to write down?

  1. 10

  2. 11

  3. 19

  4. 20

  5. 9
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Count the 9s in two places: the units position (9, 19, 29, ..., 99) gives 10 occurrences. The tens position (90, 91, 92, ..., 99) gives 10 more. But 99 has two 9s, so total = 10 + 10 = 20. Option D is correct.

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