Question

Take two digits 5 and 7 . From them make four digit numbers , using both the digits equal no. of times .
1) What is the greatest no.?
2) What is the smallest no.?
3)What is the number of different numbers that can be formed in all?​

Answer 1

ANSwER :

1. The greatest number is 7
2. The smallest number is 5
3. Don't know the answer