Question

4.
The difference between the greatest and the smallest five digit number is:
(a) 80000
(b) 1
(C) 100
(d) None of these​

Answer 1

Answer:

The smallest five digit number is 10000, since the number should be of unique digits, the smallest five digit number without number repetition is 10234. Hence the difference between largest and smallest of number without number repetition is, 98765 - 10234 = 88531

Answer 2

Greatest 5- digit number : 99999
Smallest 5- digit number : 10000
Their difference : 99999-10000
= 89999.

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