Answer:
Please check the wording of the problem.
Explanation:
It is difficult interpreting the problem:
"A sum of digit of two digit number is 9 the number obtained by interchanging the digits. Exceeds the given number by 27."
A sum of digit of two digit number is easy. Let x and y represent the 2 digits of the two-digit number: xy. The "the sum of two digit number is 9" might mean (x+y) = 9. But there is no period at the end of the sentence, suggesting that "is 9" is supposed to be followed by some mathematical operator such as times, more than, less than "the number obtained . . ."
The next sentence "Exceeds the given number by 27." has no subject and no definition of "given number."
Please clarify.