document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=419119>Question 419119</A>: <I><SPAN STYLE=\"word-break: break-all;\"> dr.kawasaki is twice as old as his son. twenty years ago, he was 4 times as old as his son was ten. 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 #293157 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=293157\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> son----x years<BR>\n" );
document.write( "Kawasaki ----- 2x\r<BR>\n" );
document.write( "\n" );
document.write( "20 years ago <BR>\n" );
document.write( "son = x-20<BR>\n" );
document.write( "Kawasaki = 2x-20<BR>\n" );
document.write( "..<BR>\n" );
document.write( "2x-20= 4(x-20)<BR>\n" );
document.write( "2x-20=4x-80<BR>\n" );
document.write( "2x=60<BR>\n" );
document.write( "x= 30 son's age<BR>\n" );
document.write( "father's age = 30*2=60 years<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );