Find the greatest and the smallest number from the set .
Step 1. Count the digit of the number
Here each number has -digit.So we can not identify which number is greater and smaller.
Step 2. Compare the the numbers having same digit.
So we have to compare digits at higher places
In all the numbers , is at higher place
And at the second higher place of the numbers respectively
As
Hence the greatest number is and smallest number is .