document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1154830>Question 1154830</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a plane travels at 100km/h one way and returns at 165km/h the whole trip takes 30mins. how long does it take to on the 1st trip ( 100km/h ) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #777318 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=777318\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a plane travels at 100km/h one way and returns at 165km/h the whole trip takes 30mins. how long does it take to on the 1st trip (100km/h)<BR>\n" );
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document.write( "The avg speed for the round-trip is 2*100*165/(100+165) = 6600/41 km/hr<BR>\n" );
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document.write( "---> the 1 way distance = (1/2)*6600/41 km = 3300/41 km<BR>\n" );
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document.write( "For the outbound part: t = d/r<BR>\n" );
document.write( "t = (3300/41)/100<BR>\n" );
document.write( "t = 33/41 hours </SPAN>\n" );
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