document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=998990>Question 998990</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Dr. Nick is twice as old as his son. Twenty years ago, he was 4 times as old as his son then. How old are they now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #616662 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=616662\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let son's age be x<BR>\n" );
document.write( "then father's age = 2x\r<BR>\n" );
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document.write( "20 years ago their ages\r<BR>\n" );
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document.write( "son (x-20)<BR>\n" );
document.write( "father ---- (2x-20)\r<BR>\n" );
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document.write( "According to the information\r<BR>\n" );
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document.write( "(2x-20)=4(x-20)\r<BR>\n" );
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document.write( "2x-20 = 4x-80\r<BR>\n" );
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document.write( "2x=60\r<BR>\n" );
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document.write( "/2<BR>\n" );
document.write( "x=30\r<BR>\n" );
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document.write( "Son's age = 30\r<BR>\n" );
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document.write( "Father's age = 30*2 = 60\r<BR>\n" );
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document.write( " </SPAN>\n" );
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