(5) Find the difference between the greatest and the least 5-digit number that can be written using the digits 6, 2, 7, 4, 3 each only once
We have been provided with 5 digits 6,2,7,4,3 and these digits should not be repeated.
Greatest 5 digit number possible: 76432
Least 5 digit number possible: 23467
Difference between greatest and the least number:
Hence, 52965 is our answer