Product of digits of a 2-digit number is 72. If we add 9 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.

Product of digits of a 2-digit number is 72. If we add 9 to the number

1.	Product of digits of a 2-digit number is 72. If we add 9 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.
A.	98
B.	89
C.	78
D.	87
Answer» C. 78