document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1099284>Question 1099284</A>: <I><SPAN STYLE=\"word-break: break-all;\"> John can dig the garden in 30 minutes, while Jack takes 20 minutes. If they work together how many minutes would they take  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #713738 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=713738\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <br>Tutor ikleyn's solution uses the method usually taught for solving problems like this, using the fractions of the job each worker does in a fixed unit of time.<br><BR>\n" );
document.write( "If you are one of a large number of people who dislike fractions, here is an alternative method for solving this problem.<br><BR>\n" );
document.write( "Consider the least common multiple of the two given times -- it is 60 minutes.<BR>\n" );
document.write( "In 60 minutes, John could dig 2 of those gardens, and Jack could dig 3 of them.<BR>\n" );
document.write( "So together in 60 minutes the two of them could dig 5 of them.<BR>\n" );
document.write( "So the amount of time it would take them together to dig the one garden is 60/5 = 12 minutes. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );