SOLUTION: the sum of the digits of a 2-digit number is 7.the number obtained by interchanging the digits exceeds the original number by 27.find the number

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Question 1045415: the sum of the digits of a 2-digit number is 7.the number obtained by interchanging the digits exceeds the original number by 27.find the number
Answer by ikleyn(52798) About Me  (Show Source):
You can put this solution on YOUR website!
.
25.

52 - 25 = 27.

Answer. 25.

The simplest way to solve it is to guess. You need to check only three numbers: 16, 25 and 34.

If you want to know/to learn another way, look into the lesson
    - Word problems on interchanging digits of numbers
in this site.