document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=616854>Question 616854</A>: <I><SPAN STYLE=\"word-break: break-all;\">   Barry is 8 years older than his sister. In 3 years, he will be twice as old as she will be then. How old is each now? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #387930 by </B><A HREF=/tutors/aboutme.mpl?userid=Maths68><B>Maths68(1474)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Maths68><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=Maths68><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=387930\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let<BR>\n" );
document.write( "Present age of Barry = b<BR>\n" );
document.write( "Present age of his sister = s\r<BR>\n" );
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document.write( "Barry is 8 years older than his sister<BR>\n" );
document.write( "b=s+8..........(1)\r<BR>\n" );
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document.write( "In 3 years<BR>\n" );
document.write( "Barry will be = b+3<BR>\n" );
document.write( "His sister will be = s+3\r<BR>\n" );
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document.write( "Then\r<BR>\n" );
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document.write( "He will be twice as old as his sister will be\r<BR>\n" );
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document.write( "b+3=2(s+3)<BR>\n" );
document.write( "b+3=2s+6<BR>\n" );
document.write( "b=2s+6-3<BR>\n" );
document.write( "b=2s+3.................(2)\r<BR>\n" );
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document.write( "Substitute the value of b from (1) to (2)\r<BR>\n" );
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document.write( "s+8=2s+3<BR>\n" );
document.write( "s-2s=3-8<BR>\n" );
document.write( "-s=-5<BR>\n" );
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document.write( "s=5\r<BR>\n" );
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document.write( "Substitute the value of s in (1)<BR>\n" );
document.write( "b=s+8<BR>\n" );
document.write( "b=5+8<BR>\n" );
document.write( "b=13\r<BR>\n" );
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document.write( "Present age of Barry = b = 13 years old<BR>\n" );
document.write( "Present age of his sister = s = 5 years old<BR>\n" );
document.write( " </SPAN>\n" );
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