Directions: Each of the following questions consists of 3 statements A, B, and C. You have to determine that which of the following statement/statements are not necessary to answer the question.
Find the two-digit number xy.
I. The number obtained by interchanging the digits of the number is less than the original number by 18.
II. The sum of the digits is 8.
III. The difference of digit is 2.
1
Only statement I
2
Statement I and statement III
3
Either I or III
4
Statement II and statement III
5
Data insufficient