Question 1088508
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Let "x" will be an unknown middle number.

Then the three numbers are (x-1), x and (x+1).

You are given that 

(x-1) + x + (x+1) = 81,    or, which is the same,

3x = 81.


Hence, x = {{{81/3}}} = 27.


So, your numbers are 26, 27 and 28.
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Solved.



<U>Lesson to learn from this solution</U>:


<pre>
     If you are given the sum of three consecutive integer numbers, the middle number is <U>ONE THIRD</U> of the sum.

     It is <U>ALWAYS TRUE</U> and may help you to solve similar problems <U>MENTALLY</U>.
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