document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=636506>Question 636506</A>: <I><SPAN STYLE=\"word-break: break-all;\"> three years ago, Rica was thrice as old as Dandy. Three years hence, she will be twice as old. find their present ages. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #401064 by </B><A HREF=/tutors/aboutme.mpl?userid=sachi><B>sachi(548)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=sachi><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=sachi><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=401064\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> three years ago, Rica was thrice as old as Dandy. Three years hence, she will be twice as old. find their present ages.<BR>\n" );
document.write( "ans:-<BR>\n" );
document.write( "let Dandy is x yrs now ,so 3 yrs ago he was x-3 yrs<BR>\n" );
document.write( "so rica was 3(x-3)yrs then<BR>\n" );
document.write( "3yrs hence dandy will be x+3 & rica will be 3(x-3)+6<BR>\n" );
document.write( "as per question 3(x-3)+6=2(x+3)<BR>\n" );
document.write( "or 3x-9+6=2x+6<BR>\n" );
document.write( "or x=9= dandy;s age now<BR>\n" );
document.write( "& rica is 3(9-3)+3=21 yrs ans\r<BR>\n" );
document.write( "\n" );
document.write( "otherwise<BR>\n" );
document.write( "let dandy is x yrs & rics is y yrs now <BR>\n" );
document.write( "three years ago y-3=3(x-3)<BR>\n" );
document.write( "or 3x-y=6----------1<BR>\n" );
document.write( "Three years hence y+3=2(x+3)<BR>\n" );
document.write( "or 2x-y=-3 --------2<BR>\n" );
document.write( "subtracting (2) from(1)<BR>\n" );
document.write( "x=9<BR>\n" );
document.write( "from (1) y=21 ans </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );