document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1179665>Question 1179665</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a two-digit number, the sum of the digits is 8. The difference between this number and the number with the digits reversed is 54. What is the number? </SPAN>\n" );
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document.write( "In a two-digit number, the sum of the digits is 8. The difference between this number and the number with the digits reversed is 54. What is the number?\r<BR>\n" );
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document.write( "Let ten's digit be x<BR>\n" );
document.write( "and unit's digit be y\r<BR>\n" );
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document.write( "the value of number is 10x+y\r<BR>\n" );
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document.write( "x+y=8-----------------------(1)\r<BR>\n" );
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document.write( "10x+y-(10y+x)= 54<BR>\n" );
document.write( "9x-9y =54<BR>\n" );
document.write( "/9<BR>\n" );
document.write( "x-y = 6-----------------(2)\r<BR>\n" );
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document.write( "add (1) and (2)\r<BR>\n" );
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document.write( "2x = 14<BR>\n" );
document.write( "x=7<BR>\n" );
document.write( "y=1\r<BR>\n" );
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document.write( "Number is 71 </SPAN>\n" );
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