Question

Find the difference between the greatest and least number that can be written using the digits $6,2,7,4,3$ each only once.

Answer 1

For forming the greatest number using given digits, We arrange the given digits in descending order to form the greatest number.

So,

The greatest number that can be written using the digits $6,2,7,4,3$ each only once $=76432$

The least number that can be written using the digits $6,2,7,4,3$ each only once $=23467$

The difference between the greatest and least number that can be written using the digits $6,2,7,4,3$ each only once

$$\begin{gathered} =76432-23467 \\ =52965 \end{gathered}$$

Hence, the difference between the greatest and least number that can be written using the digits $6,2,7,4,3$ each only once is $52965$.