document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=249941>Question 249941</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a mad scientist develops a formula which can turn a light bulb into a camel. <BR>\n" );
document.write( "working alone, it takes the scientists 4 hours to create one dose of formula. <BR>\n" );
document.write( "the mad scientist's slightly mad assistant Igor can make one dose in 12 hours. <BR>\n" );
document.write( "how long, working together, will it take the mad scientist and Igor to create <BR>\n" );
document.write( "one dose of formula? answer the question by using a table and the 5- step <BR>\n" );
document.write( "method.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #183921 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=183921\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> working alone, it takes the scientists 4 hours to create one dose of formula. <BR>\n" );
document.write( "the mad scientist's slightly mad assistant Igor can make one dose in 12 hours. <BR>\n" );
document.write( "how long, working together, will it take the mad scientist and Igor to create <BR>\n" );
document.write( "one dose of formula?<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "The scientist makes 1/4 dose per hour<BR>\n" );
document.write( "The assistant makes 1/12 dose per hour<BR>\n" );
document.write( "Together, they make 1/4 + 1/12 per hour<BR>\n" );
document.write( "= 3/12 + 1/12 = 1/3 dose per hour<BR>\n" );
document.write( "--> 3 hours per dose.<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "Use the shortcut, product/sum<BR>\n" );
document.write( "4*12/(4+12) = 48/16 = 3<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );