document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=855715>Question 855715</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The average age of sons and their father is 20 years.If the average age of sons is 10 years,Find the age of their father.<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 #515548 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=515548\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Son's age = s1 & s2<BR>\n" );
document.write( "father's age =f\r<BR>\n" );
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document.write( "(s1+s2+f)/3 = 20\r<BR>\n" );
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document.write( "s1+s2+f=60\r<BR>\n" );
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document.write( "(s1+s2)/2=10\r<BR>\n" );
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document.write( "s1+s2=20\r<BR>\n" );
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document.write( ".....<BR>\n" );
document.write( "s1+s2+f=60\r<BR>\n" );
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document.write( "20+f=60<BR>\n" );
document.write( "f=60-20<BR>\n" );
document.write( "f=40\r<BR>\n" );
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document.write( "Father's age=40 years </SPAN>\n" );
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