WHAT IS THE FOUR DISIT NUMBER WHOSE GREATEST AND SMALLEST NUMER ,DISITS ARE NOT REAPTING BUT UNIT DISIT 1.

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Lacking Data.

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IF UNIT IS 1, HOW ABOUT 9871 ?

To find a four-digit number where the greatest and smallest digits are not repeating, and the unit digit is 1, we can follow these steps:

Step 1: Determine the range of possible values for each digit:
- The unit digit is given as 1, so that remains fixed.
- The thousands place digit can be any number from 1 to 9 (since the digit cannot repeat).
- The hundreds and tens place digits can be any number from 0 to 9 (including 1) since the greatest and smallest digits should not be repeating.

Step 2: Generate random combinations of digits to form a four-digit number that satisfies the given conditions. Start with the thousands place digit and work your way to the units place digit.

Here is an example:
1. Generate a random value (between 1 and 9) for the thousands place digit.
2. Next, generate random values (between 0 and 9) for the hundreds and tens place digits, making sure to include 1 in the range.
3. Lastly, fix the unit digit as 1.

Let's see an example:
1. Consider the thousands place digit. We generate a random value, let's say 7.
2. For the hundreds and tens place digits, we can generate another random value between 0 and 9 (including 1). Let's assume we get 3 for both.
3. Finally, we fix the unit digit as 1.

Putting it all together, the four-digit number that satisfies the given conditions would be 7311.

Please note that this is just one example of a four-digit number that satisfies the given conditions. There are numerous other combinations that you could generate.