document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=744574>Question 744574</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the present age of a father is equal to the sum of ages of his 5 children. 12 years hence the sum of ages of his children will be twice the age of their father. find 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 #453420 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=453420\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the present age of a father is equal to the sum of ages of his 5 children.<BR>\n" );
document.write( "f = a+b+c+d+e<BR>\n" );
document.write( ":<BR>\n" );
document.write( " 12 years hence the sum of ages of his children will be twice the age of their father.<BR>\n" );
document.write( "a+12 + b+12 + c+12 + d+12 + e+12 = 2(f+12)<BR>\n" );
document.write( " a+b+c+d+e + 60 = 2f + 24<BR>\n" );
document.write( "Replace a+b+c+d+e with f<BR>\n" );
document.write( "f + 60 = 2f + 24<BR>\n" );
document.write( "60 - 24 = 2f - f<BR>\n" );
document.write( "36 = f<BR>\n" );
document.write( ":<BR>\n" );
document.write( "find the present age of the father. He's 36 yrs old </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );