Form the largest and smallest 4-digit numbers using each of digits 7,1,0,5 only once.

Q. The largest $4$-digit and smallest $4$-digit numbers formed by using the digits $4,0,3,7$ each only once respectively are______.

Q.

The successor of largest four digit number using each of the digits 7, 1, 0, 5 only once is

Q. Write the greatest and the smallest numbers of 4 digits that can be formed using the digits 0, 8, 7, 5 ; using each digit only once.

Q. The smallest 4-digit number formed by using the digits $5,0,3,1,7$ only once contains :

Q. The largest five-digit number that can be formed with the digits 1, 9, 0, 4, and 3 using each digit only once is .