Question

The greatest four digit number using 3, 0, 9, 1 without repetition is _________.​

Answer 1

Answer:

The greatest 4 digit number formed by the given digits without repetition is 9310

Answer 2

The greatest 4 digit number using 3091 without repetition is 9310.

• We need to find the greatest 4 digit number using the digits 3,0,1,9.
• To get the greatest 4 digit number without repetition we will arrange the digits from the highest to the lowest.
• The arranged digits would be 9,3,1,0
• Now this number would represent the greatest 4 digit number which is 9310.
• The greatest 4 digit number with repetition would have been 9999.