document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=881431>Question 881431</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 10 year ago the age of A was half as old as B.if the ratio of there present age is 3:4,then the sum of there present age is?\r<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 #532256 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=532256\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 10 year ago the age of A was half as old as B.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28%28A-10%29%29%2F%28%28B-10%29%29 ALIGN=MIDDLE  ALT=\"%28%28A-10%29%29%2F%28%28B-10%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1%2F2 ALIGN=MIDDLE  ALT=\"1%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Cross multiply<BR>\n" );
document.write( "B - 10 = 2(A-10)<BR>\n" );
document.write( "B - 10 = 2A - 20<BR>\n" );
document.write( "B = 2A - 20 + 10<BR>\n" );
document.write( "B = 2A - 10<BR>\n" );
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document.write( "if the ratio of there present age is 3:4,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A%2FB ALIGN=MIDDLE  ALT=\"A%2FB\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2F4 ALIGN=MIDDLE  ALT=\"3%2F4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "4A = 3B<BR>\n" );
document.write( "Replace B with (2A-10)<BR>\n" );
document.write( "4A = 3(2A-10)<BR>\n" );
document.write( "4A = 6A - 30<BR>\n" );
document.write( "30 = 6A - 4A<BR>\n" );
document.write( "30 = 2A<BR>\n" );
document.write( "A = 30/2<BR>\n" );
document.write( "A = 15 is A's age<BR>\n" );
document.write( "then<BR>\n" );
document.write( "B = 2(15) - 10<BR>\n" );
document.write( "B = 20 yrs is B's age<BR>\n" );
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document.write( "Then the sum of there present age is? 35<BR>\n" );
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