document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=756492>Question 756492</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The difference between a 2-digit number and the number obtained by interchanging its digits is 63. What is the difference between the digits of the number? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #460211 by </B><A HREF=/tutors/aboutme.mpl?userid=RajM><B>RajM(5)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=RajM><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=RajM><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=460211\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let me number be xy.\r<BR>\n" );
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document.write( "we can write it as 10x+y and after interchanging the number becomes yx which can be written as 10y+x.\r<BR>\n" );
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document.write( "(10x+y) - (10y+x) = 63\r<BR>\n" );
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document.write( "10x+y-10y-x = 63\r<BR>\n" );
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document.write( "9x-9y=63\r<BR>\n" );
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document.write( "9(x-y)=63\r<BR>\n" );
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document.write( "x-y = 7\r<BR>\n" );
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document.write( "Hence difference between digits is 7. </SPAN>\n" );
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