document.write( "Question 949938: Among all 2 digits numbers (10 to 99), You need to find out how many of those has its unit digit greater than the tens digit...? \n" ); document.write( "
Algebra.Com's Answer #579994 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Let's work backwards.
\n" ); document.write( "Number starting with 9, none.
\n" ); document.write( "Numbers starting with 8, 1 (89).
\n" ); document.write( "Numbers starting with 7, 2 (78,79).
\n" ); document.write( "I think you see a pattern here.
\n" ); document.write( "\"N=0%2B1%2B2%2B3%2B4%2B5%2B6%2B7%2B8%2B9\"
\n" ); document.write( "\"N=45\"
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