document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=484788>Question 484788</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Bob is one third the age of his father. In 12 years he will be half the age of his father. How old is each now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #331638 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=331638\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Bob is one third the age of his father. In 12 years he will be half the age of his father. How old is each now?<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Equations:<BR>\n" );
document.write( "b = (1/3)f<BR>\n" );
document.write( "(b+12) = (1/2)(f+12)<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Substitute for \"b\" and solve for \"f\":<BR>\n" );
document.write( "(1/3)f + 12 = (1/2)f + 6<BR>\n" );
document.write( "---<BR>\n" );
document.write( "[(1/2)-(1/3)]f = 6<BR>\n" );
document.write( "(1/6)f = 6<BR>\n" );
document.write( "f = 36 yrs (father's age now)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "b = (1/3)f = 12 yrs (Bob's age now)<BR>\n" );
document.write( "==============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "============== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );