document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=889795>Question 889795</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The no. of ordered pairs (x, y) of positive integers such that x+y=90 and their greatest common divisor is 6 equals <BR>\n" );
document.write( "A) 15.    B) 14.  C) 8.   D) 10 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #538479 by </B><A HREF=/tutors/aboutme.mpl?userid=JulietG><B>JulietG(1812)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=JulietG><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=JulietG><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=538479\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let's look at products of 6.<BR>\n" );
document.write( "6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90<BR>\n" );
document.write( "Which pairs equal 90?<BR>\n" );
document.write( "6 + 84<BR>\n" );
document.write( "12 + 78<BR>\n" );
document.write( "18 + 72<BR>\n" );
document.write( "66 + 24<BR>\n" );
document.write( "60 + 30<BR>\n" );
document.write( "54 + 36<BR>\n" );
document.write( "48 + 42<BR>\n" );
document.write( "Zero is a NEUTRAL integer.  I'm only seeing 7 pairs.  Ah, but this is a trick question -- there are actually 14.  Do you know why?<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Reverse the numbers for the ordered pair.  Not just {6,84} but also {84,6}, etc. </SPAN>\n" );
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