document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=60562>Question 60562</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hiya guys i need help on these problems:\r<BR>\n" );
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document.write( "its like greek to me...dont understand it a bit!\r<BR>\n" );
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document.write( "The hiking club hiked to Robbers Cave State Park at 4 mph.  They got a ride back to town in a truck that went 20 mph.  If roundtrip took 18 hours how far was it from town to park?\r<BR>\n" );
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document.write( "Simon set out on a hike.  After walking for some time at 5kph he caught a ride back home in a truck that traveled at 20 kph.  If the roundtrip took 10 hours how far did he walk?\r<BR>\n" );
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document.write( " and last one...\r<BR>\n" );
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document.write( "There were 6 more girls than twice the number of boys.  There were 36 boys and girls in all.  How many boys and how many were there?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #41596 by </B><A HREF=/tutors/aboutme.mpl?userid=jai_kos><B>jai_kos(139)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jai_kos><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=41596\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solution:<BR>\n" );
document.write( "a)  The hiking club hiked to Robbers Cave State Park at 4 mph<BR>\n" );
document.write( "     They got a ride back to town in a truck that went 20 mph.<BR>\n" );
document.write( "     Formula: Total speed = total distance / total time.<BR>\n" );
document.write( "     Total speed = (4 + 20) mph = 24mph<BR>\n" );
document.write( "    Total time = 18hrs<BR>\n" );
document.write( "   Substituting in the above formula, we have <BR>\n" );
document.write( "   24 = total distance / 18<BR>\n" );
document.write( "   24 * 18 = total distance<BR>\n" );
document.write( "  432 = total distance<BR>\n" );
document.write( "  Distance from park to the town + distance from the town to park = 432<BR>\n" );
document.write( "  Distance from park to the town =  distance from the town to park<BR>\n" );
document.write( "  So we write it as,<BR>\n" );
document.write( " 2 distance = 432<BR>\n" );
document.write( " Distance = 432 /2<BR>\n" );
document.write( " Distance = 216miles<BR>\n" );
document.write( " The distance from the park to the town is 216 miles. \r<BR>\n" );
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document.write( "b) we use the similar concept to solve.<BR>\n" );
document.write( "     Formula: Total speed = total distance / total time.<BR>\n" );
document.write( "     5 + 20 = total distance / 10<BR>\n" );
document.write( "     25 = total distance / 10<BR>\n" );
document.write( "     25 * 10 = total distance<BR>\n" );
document.write( "     250 = total distance<BR>\n" );
document.write( "    Distance walked + distance came back to home = 250<BR>\n" );
document.write( "    Distance walked = distance came back to home<BR>\n" );
document.write( "    So we write it as,<BR>\n" );
document.write( "    2 Distance walked = 250<BR>\n" );
document.write( "    Distance walked = 250 /2<BR>\n" );
document.write( "    Distance walked = 125 km\r<BR>\n" );
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document.write( "      c)    Let the number of girls be “x”<BR>\n" );
document.write( "            And the number of boys be “y”<BR>\n" );
document.write( "            Given that there are 6 more girls than twice the number of boys<BR>\n" );
document.write( "            i.e. 6x = 2y<BR>\n" );
document.write( "                  3x = y                --- &#61664;(1)<BR>\n" );
document.write( "            Also given there are 36, boys and girls in all.<BR>\n" );
document.write( "            i.e.  x + y = 36         --- &#61664;(2)<BR>\n" );
document.write( "            Substituting equation (1) in equation (2), we get<BR>\n" );
document.write( "            x + 3x = 36       <BR>\n" );
document.write( "            4x = 36<BR>\n" );
document.write( "            x = 9<BR>\n" );
document.write( "            Now substitute the value of “x” in equation (1) we get<BR>\n" );
document.write( "            3* 9 = y<BR>\n" );
document.write( "            27 = y<BR>\n" );
document.write( "            Therefore the number of girls are 9 and number of boys are 27<BR>\n" );
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