document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=82372>Question 82372</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Beavis and Butthead  steal their neighbor's riding lawnmower and drive away at a constant speed of 15 miles per hour.  Five minutes later, their neighbor jumps onto Butthead's skateboard and chases after them at a constant speed of 20 miles per hour.  Find the neighbor's travel time needed to catch Beavis and Butthead.  Give your final answer in hours. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #59007 by </B><A HREF=/tutors/aboutme.mpl?userid=askmemath><B>askmemath(368)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=askmemath><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=59007\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Since everything is is minutes, we'll first find the answer in minutes and then convert it to hours\r<BR>\n" );
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document.write( "In 1min Beavis and Butthead would have covered 15/60 miles = 1/4miles<BR>\n" );
document.write( "In 5mins Beavis and Butthead would have covered 15/60 miles =5x( 1/4miles) = 5/4 = 1.25miles\r<BR>\n" );
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document.write( "Now the neighbour starts chasing them at 20miles per hour<BR>\n" );
document.write( "Effective speed = 20-15 = 5miles per hour = 5/60 = 1/12mile per minute\r<BR>\n" );
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document.write( "Time taken to cover 5/4 miles = (5/4) / (1/12) = 15mins\r<BR>\n" );
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document.write( "Time taken in hours = 15/60 = 1/4 = .25hours<BR>\n" );
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