Multiple choice general knowledge math & puzzles

How many 4 digit numbers can be formed using the digits 0,9,1,8,2. repetition of the digits is not allowed.

  1. 48

  2. 4!

  3. 5*4!

  4. 96

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

We have 5 distinct digits (0,1,2,8,9) and need 4-digit numbers without repetition. First digit cannot be 0: 4 choices. Then arrange remaining 3 from 4 available digits: 4P3 = 4×3×2 = 24. Total = 4×24 = 96. Option D is correct.