S K Gupta and Anubhuti Gangal Solutions for Exercise 2: EXERCISE 1 (B)

Write the greatest and the smallest 5-digit numbers using all of the following digits by using any one digit twice $6,3,8,2$

Write the greatest and the smallest 5-digit numbers using all of the following digits by using any one digit twice $1,0,5,7$

Write the greatest and the smallest $5-$digit numbers using all of the following digits by using any one digit twice $2,8,9,1$

Write the greatest and the smallest $5-$digit numbers using all of the following digits by using any one digit twice $5,7,0,3$

The smallest five digit number using two different digits is

The difference between the greatest five digit number and the greatest five digit number with all different digits is

The sum of the smallest 4-digit number using only one digit and the greatest 4-digit number is

Take two digits $5$ and $7$. From them make four digit numbers, using both the digits equal number of times.

What is the greatest number ? What is the smallest number ? What is the number of different numbers that can be formed in all?