document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=294671>Question 294671</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two cars(A & B)started to from two stations at the same time. Distance b/w the stations is 230 km. After 3 hours distance b/w them is 20 km. The speed of B increases by 10 km for every one hour. What is the ratio of their speeds? <BR>\n" );
document.write( " i solved equation and got expression as (speed of A)+(speed of B)=60.If it is true then how to cnvert into ratio? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #212489 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=212489\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Which equation did you solve to get a+b=60?<BR>\n" );
document.write( "What is the ratio of their speeds at what time?<BR>\n" );
document.write( "B keeps changing.<BR>\n" );
document.write( "We aren't told anything about A's speed.<BR>\n" );
document.write( "In 3 hours they have gone 210 km<BR>\n" );
document.write( "but B goes 10 kph more each hour.<BR>\n" );
document.write( "1st hour distance a+b<BR>\n" );
document.write( "2nd hour a+b+10<BR>\n" );
document.write( "3rd hour a+b+20<BR>\n" );
document.write( "So we have 3a+3b+30=210<BR>\n" );
document.write( "divide by 3<BR>\n" );
document.write( "a+b+10=70<BR>\n" );
document.write( "a+b=60<BR>\n" );
document.write( "a=60-b<BR>\n" );
document.write( "or <BR>\n" );
document.write( "b=60-a<BR>\n" );
document.write( "But again when are we taking this ratio? <BR>\n" );
document.write( "It is different at each hour. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );