document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=352577>Question 352577</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Each of two brothers can wash a car in 1 hour; however their sister can wash the car in 45 minutes.If all three work together, how long will it take to wash the car? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #251982 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=251982\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Each of two brothers can wash a car in 1 hour; however their sister can wash the car in 45 minutes.<BR>\n" );
document.write( "If all three work together, how long will it take to wash the car?<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Equation:<BR>\n" );
document.write( "rate + rate + rate = together rate<BR>\n" );
document.write( "1 + 1 + (1/(3/4)) = 1/x<BR>\n" );
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document.write( "2 (4/3) = 1/x<BR>\n" );
document.write( "---<BR>\n" );
document.write( "10/3 = 1/x<BR>\n" );
document.write( "x = 3/10 hr<BR>\n" );
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document.write( "(3/10)hr = (3/10)60 min = 18 minutes<BR>\n" );
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document.write( "They can do it together in 18 minutes.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );