Find the greatest 4-digit number with all different digits.


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Answer:

9876

Step by Step Explanation:
  1. As we know that there are ten different digits, i.e., 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9, where 9 is the greatest of all.
  2. We have to form the greatest 4-digit number without repeating the digits.
    It means that we need to place the greatest digit at the thousands place, i.e., 9 and arrange the rest of the digits in the descending order, i.e., 9, 8, 7, and 6. .
  3. Hence, 9876 is the greatest 4-digit number with all different digits.

    Th 9 H 8 T 7 O 6

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