document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=847471>Question 847471</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ratio of english books to maths books is 3:5.If the number of english books is 630 find the total number of books </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #510465 by </B><A HREF=/tutors/aboutme.mpl?userid=swincher4391><B>swincher4391(1107)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=swincher4391><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=swincher4391><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=510465\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> English : Math  - >   3:5\r<BR>\n" );
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document.write( "Now notice we multiply 3 by 210 to get 630<BR>\n" );
document.write( "So it would make sense to multiply 5 by 210 to get 1050.\r<BR>\n" );
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document.write( "So we have 630:1050\r<BR>\n" );
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document.write( "Or in total 630 + 1050 = 1680 total books.\r<BR>\n" );
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document.write( "SHORTCUT:\r<BR>\n" );
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document.write( "Notice that since 3:5 is our lowest form we have 8 total books in this ratio.\r<BR>\n" );
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document.write( "We then notice again that we have multiplied by 210 to get to 630, but instead of finding the number of math books, we can just take 210 * 8 = 1680. </SPAN>\n" );
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