document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=327365>Question 327365</A>: <I><SPAN STYLE=\"word-break: break-all;\"> bob's  father is 3 times old as bob. 4 years ago, he was 4 times older. how old is bob? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #234490 by </B><A HREF=/tutors/aboutme.mpl?userid=AAfter+Search><B>AAfter Search(61)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=AAfter+Search><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=234490\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let the age of Bob be p years.<BR>\n" );
document.write( "Then present age of Bob's father is q = 3p<BR>\n" );
document.write( "4 years ago, 3p - 4 = 4(p - 4)<BR>\n" );
document.write( "=> 3p - 4 = 4p - 16<BR>\n" );
document.write( "=> 3p - 4p = 4 - 16<BR>\n" );
document.write( "=> -p = -12<BR>\n" );
document.write( "p = 12<BR>\n" );
document.write( "q = 3 x 12 = 36 years<BR>\n" );
document.write( "Hence, present age of Bob is 36 years. </SPAN>\n" );
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