Question 405806
I am a two digit number....
<pre>
So put two blanks for the digits:  
_ _
</pre>
I have a 9 in the tens place
<pre>
So we can fill in the first blank with a 9

<u>9</u> _
</pre>
with the sum of digits 13.  
<pre>
So a 4 has to go in the one's place:

So the answer is

<u>9</u> <u>4</u>

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</pre>
I am a two digit number 
<pre>
So put two blanks for the digits:  

_ _
</pre>
I have a 0 in the ones place...
<pre>
_ <u>0</u>
</pre>
with the sum of digits 7.  
<pre>
So a 7 has to go in the tens place. So the
answer is

<u>7</u> <u>0</u>
</pre>
I am a two digit number with the sum of digits 1.  
I have an 8 in the ones place. I am
<pre>
That's impossible.  You must have mistyped.
</pre>
I am an even number less than 50 with the sum of digits 9.
<pre> 
That could be 18 or 36
</pre>
I am a three digit number with a sum of 27.  I am 
<pre>
That can only be 999. If any digit were less than 9 the sum of digits
would be less than 27.

Edwin</pre>