document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=921633>Question 921633</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car and a bus set out at 2pm from the same point headed in the same direction the average speed of the ca r is 30 mph slower than twice the speed of the bus. In two hours, the car is 20 miles ahead of the bus what is the speed of the car?\r<BR>\n" );
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document.write( "What i have done:<BR>\n" );
document.write( "Suppose the speed of the bus is x. Then the speed of the car will be 2x-30.<BR>\n" );
document.write( "We need to find speed so speed=Distance/Time.<BR>\n" );
document.write( "Please help me after that as i am not able to proceed further.<BR>\n" );
document.write( "The options are a)40mph  b)50mph  c)60mph  d)70mph </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #559130 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=559130\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "A car and a bus set out at 2pm from the same point headed in the same direction the average speed of the ca r is 30 mph slower than twice the speed of the bus. In two hours, the car is 20 miles ahead of the bus what is the speed of the car?\r<BR>\n" );
document.write( "\n" );
document.write( "What i have done:<BR>\n" );
document.write( "Suppose the speed of the bus is x. Then the speed of the car will be 2x-30.<BR>\n" );
document.write( "We need to find speed so speed=Distance/Time.<BR>\n" );
document.write( "Please help me after that as i am not able to proceed further.<BR>\n" );
document.write( "The options are a)40mph  b)50mph  c)60mph  d)70mph<BR>\n" );
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document.write( "Let speed of bus be S (You have this as x)<BR>\n" );
document.write( "Then speed of car = 2S – 30 (You have this as 2x – 30)<BR>\n" );
document.write( "In 2 hours, the bus has traveled a distance of: 2S<BR>\n" );
document.write( "In 2 hours, the car has traveled a distance of: 2(2S – 30), or 4S – 60<BR>\n" );
document.write( "Therefore, we get: 2S + 20 = 4S – 60<BR>\n" );
document.write( "2S – 4S = - 60 – 20 <BR>\n" );
document.write( "– 2S = - 80<BR>\n" );
document.write( "S, or speed of bus = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-+80%29%2F%28-+2%29 ALIGN=MIDDLE  ALT=\"%28-+80%29%2F%28-+2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or 40 mph<BR>\n" );
document.write( "Speed of car: 2(40) – 30, or 80 – 30, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2850%29 ALIGN=MIDDLE  ALT=\"highlight_green%2850%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > mph (CHOICE b) </SPAN>\n" );
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