The sum of the twodigit number is of the difference between the number and the number obtained by interchanging the positions of the digits. What is definitely the difference between the digits of that numbers? 


(a) 
5 
(b) 
7 
(c) 
9 
(d) 
Data inadequate 
The sum of the twodigit number is of the difference between the number and the number obtained by interchanging the positions of the digits. What is definitely the difference between the digits of that numbers? 


(a) 
5 
(b) 
7 
(c) 
9 
(d) 
Data inadequate 
Let the ten’s digit be and the unit’s digit be
Then,
Thus, the value of cannot be determined from the given data.