Question 264377
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The tens digits of a number is 2 less than the units digit. The sum of the digits is 12. 
Identify what the number is.
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        The solution in the post by @mananth is incorrect due to an arithmetic error in his calculations.

        I came to bring a correct solution.



let the unit digit be x
ten's digit will be x-2
x + (x-2) = 12
2x = 14
x = 7 (the units digit)
the tens digit = 7 - 2 = 5
The number is 57.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>ANSWER</U>


Solved correctly.