document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=804700>Question 804700</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could you please help me with this exercise please.<BR>\n" );
document.write( "B is twice as old as A. 10 years ago B’s age was ¾ of C’s age. If in 15 years A will be 30 years younger than C, how old will be C in 40 years?<BR>\n" );
document.write( "thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #484873 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=484873\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> b=2a, <BR>\n" );
document.write( "b-10=3(c-10)/4,    <BR>\n" );
document.write( "a+15=c+15-30,<BR>\n" );
document.write( " d=c+40<BR>\n" );
document.write( "a = 20,   b = 40,   c = 50,   d = 90\r<BR>\n" );
document.write( "\n" );
document.write( "c will be 90 in 40 years </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );