document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1134009>Question 1134009</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Andrea takes half the time it takes Samantha to do a certain job, if they work together they will take 6 hours. How long will Andrea to do it alone? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #751310 by </B><A HREF=/tutors/aboutme.mpl?userid=greenestamps><B>greenestamps(13200)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=greenestamps><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=greenestamps><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=751310\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br><BR>\n" );
document.write( "Obviously one of the answers you have received makes no sense; it can't take them 2 hours and 4 hours individually if it takes them 6 hours together.<br><BR>\n" );
document.write( "Here is a different way than shown by the other tutor to get the correct answer of 9 hours for the time it takes Andrea to do the job alone.<br><BR>\n" );
document.write( "(1) It takes Andrea half as long as Samantha to do the job; that means she works twice as fast as Samantha.<br><BR>\n" );
document.write( "(2) When working together, the two of them take 6 hours to do the job; and, since Andrea works twice as fast as Samantha, she does 2/3 of the job.<br><BR>\n" );
document.write( "(3) Then since Samantha does 2/3 of the job in 6 hours, she can do the whole job herself in (3/2) times 6 hours, or 9 hours. </SPAN>\n" );
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