Multiple choice general knowledge math & puzzles

How many 4 digit numbers can be formed using the digits 9,8,7,5,0 without repeting the digits?

  1. 48

  2. 60

  3. 96

  4. 36
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For a 4-digit number using {9,8,7,5,0}, the first digit cannot be 0 (4 choices). The second digit can be any of the remaining 4 (including 0), the third digit 3, and the fourth digit 2. Total = 4 * 4 * 3 * 2 = 96.

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