Question 1193469
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The units digit of a two digit number is double the tens digit. 
if the digit are reversed the new number is 27 more than the original number
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            The solution by @josgarithmetic is incorrect starting from its second line to the end.

            I came to bring a correct solution.



<pre>
The number is  10t+2t = 12t.


Reversing the digits, 10*(2t) + t = 21t.


21t - 12t = 27

9t = 27

t = 27/9 = 3.


<U>ANSWER</U>.  The number is 36.


<U>CHECK</U>.  The reversed number is 63, and it is  63 - 36 = 27  units greater than the original number.   ! correct !
</pre>

Solved.


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On reversing number problems see the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/word/misc/Word-problems-on-interchanging-digits-of-numbers.lesson>Word problems on reversing digits of numbers</A>

in this site.


Find there many other similar solved problems with full explanations.


From this lesson, &nbsp;learn on how to solve such problems - - - once and for all.