document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=549252>Question 549252</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A father is four times as old as his son is. Five years back he was seven times as old as his son was then, what is the present age of the father? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #357569 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=357569\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A father is four times as old as his son is. Five years back he was seven times as old as his son was then, what is the present age of the father.<BR>\n" );
document.write( "**<BR>\n" );
document.write( "let x=present age of son<BR>\n" );
document.write( "4x=present age of father<BR>\n" );
document.write( "5 years ago:<BR>\n" );
document.write( "x-5=age of son<BR>\n" );
document.write( "4x-5=age of father<BR>\n" );
document.write( "..<BR>\n" );
document.write( "4x-5=7(x-5)<BR>\n" );
document.write( "4x-5=7x-35<BR>\n" );
document.write( "3x=30<BR>\n" );
document.write( "x=10<BR>\n" );
document.write( "4x=40<BR>\n" );
document.write( "ans:<BR>\n" );
document.write( "Present age of the father=40 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );