document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=309027>Question 309027</A>: <I><SPAN STYLE=\"word-break: break-all;\"> KHALID IS NOW FOUR TIMES AS OLD AS HIS DAUGHTER. TEN YEARS AGO, IF THE SUM OF THEIR AGES WAS SIXTY. FIND THE PRESENT AGE OF HIS DAUGHTER?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #220946 by </B><A HREF=/tutors/aboutme.mpl?userid=mollukutti><B>mollukutti(30)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mollukutti><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=mollukutti><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=220946\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let us consider Khalid's daughter's age as x years<BR>\n" );
document.write( "Hence Khalid's present age is 4x\r<BR>\n" );
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document.write( "10 years ago daughters age was (x - 10) years<BR>\n" );
document.write( "10 years ago Khalid's age was (4x - 10)years\r<BR>\n" );
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document.write( "10 years ago the sum of their age was 60.\r<BR>\n" );
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document.write( "Hence we can write the linear equation as\r<BR>\n" );
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document.write( "(x-10)+(4x -10) = 60<BR>\n" );
document.write( "or, x - 10 +4x - 10 = 60<BR>\n" );
document.write( "or, 5x - 20 = 60\r<BR>\n" );
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document.write( "Let us add 20 to either sides now\r<BR>\n" );
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document.write( "or, 5x - 20 + 20 = 60 + 20<BR>\n" );
document.write( "or, 5x = 80<BR>\n" );
document.write( "or, x = 80/5<BR>\n" );
document.write( "or, x = 16\r<BR>\n" );
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document.write( "Hence the present age of the daughter is 16 years. </SPAN>\n" );
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