How to form the biggest and smallest number
If 4 digits 4, 8, 5, 7 are given and we have to form biggest and smallest number of 4 digits. Now, we can form twenty four four-digit numbers by using each of these digits only once.
Have a look-
From the above digits, we can form the numbers-
4857, 4578, 4758, 4875, 4587, 4785,
5487, 5478, 5847, 5874, 5748, 5784,
7485, 7458, 7845, 7854, 7548, 7584,
8457, 8475, 8574, 8547, 8745, 8754
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