Multiple choice general knowledge science & technology

what is 9's complement of 33?

  1. 44

  2. 33

  3. 66

  4. 17
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The 9's complement of a 2-digit number is found by subtracting each digit from 9. For 33: 99 - 33 = 66, or alternatively (9-3)(9-3) = 66.

AI explanation

To find the 9's complement of a number, we subtract each digit from 9.

Given the number is 33, we can find its 9's complement as follows:

The first digit of the number is 3. To find its 9's complement, we subtract 3 from 9: 9 - 3 = 6.

The second digit of the number is also 3. Again, we subtract 3 from 9: 9 - 3 = 6.

Therefore, the 9's complement of 33 is 66.

Option C) 66 is the correct answer.

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