document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=603675>Question 603675</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A motorist travels for 3okm at xkm/h and for 9okm at ykm/h and takes place 2.5hours for the journey. if the speed are interchanging, the journey take 2whole number 1/6 find x and y </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #380786 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16949)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=380786\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Distance = speed * time\r<BR>\n" );
document.write( "\n" );
document.write( "Time = distance/speed\r<BR>\n" );
document.write( "\n" );
document.write( "t=d/r<BR>\n" );
document.write( "First condition\r<BR>\n" );
document.write( "\n" );
document.write( "Time  Part I + time part II = 2.5 hour\r<BR>\n" );
document.write( "\n" );
document.write( "30/x+90/y = 2.5\r<BR>\n" );
document.write( "\n" );
document.write( "Let 1/x=a & 1/y = b\r<BR>\n" );
document.write( "\n" );
document.write( "30a+90b=5/2.......................(1)\r<BR>\n" );
document.write( "\n" );
document.write( "Second condition\r<BR>\n" );
document.write( "\n" );
document.write( "90/x+30/y = 2 1/6 = 13/6\r<BR>\n" );
document.write( "\n" );
document.write( "90a+30b= 13/6......................(2)\r<BR>\n" );
document.write( "\n" );
document.write( "add (1) & (2)<BR>\n" );
document.write( "120a+120b=5/2+13/6<BR>\n" );
document.write( "120a+120b=14/3<BR>\n" );
document.write( "divide by 120<BR>\n" );
document.write( "a+b= 14/360.............(3)\r<BR>\n" );
document.write( "\n" );
document.write( "(1)-(2)\r<BR>\n" );
document.write( "\n" );
document.write( "-60a+60b=1/3 <BR>\n" );
document.write( "divide by -60<BR>\n" );
document.write( "a-b=-1/180...................(4)\r<BR>\n" );
document.write( "\n" );
document.write( "(3)+(4)<BR>\n" );
document.write( "2a= 14/360-1/180\r<BR>\n" );
document.write( "\n" );
document.write( "a=7/360 -1/360<BR>\n" );
document.write( "a= 6/360<BR>\n" );
document.write( "a=1/60<BR>\n" );
document.write( "1/x= 1/60<BR>\n" );
document.write( "x= 60 \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "a+b = 14/360<BR>\n" );
document.write( "b= 14/360 -1/60<BR>\n" );
document.write( "b=8/360<BR>\n" );
document.write( "b=1/y = 8/360<BR>\n" );
document.write( "y= 360/8<BR>\n" );
document.write( "y=45\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );