document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=515161>Question 515161</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The 20 inch diameter wheels of one car travel at a rate of 24 revolutions per minute, while the 30 inch diameter wheels of another car travel at a rate of 18 revolutions per minute. What is the ratio of the speed of the second car to that of the first? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #343770 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=343770\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The 20 inch diameter wheels of one car travel at a rate of 24 revolutions per minute, while the 30 inch diameter wheels of another car travel at a rate of 18 revolutions per minute. What is the ratio of the speed of the second car to that of the first?<BR>\n" );
document.write( "**<BR>\n" );
document.write( "For car with 20 inch wheels:<BR>\n" );
document.write( "circumference=2&#960;r=2&#960;*10=20&#960; inches<BR>\n" );
document.write( "speed of car=24rev/min*20&#960; inches/rev=48&#960; inches/min<BR>\n" );
document.write( "..<BR>\n" );
document.write( "For car with 20 inch wheels:<BR>\n" );
document.write( "circumference=2&#960;r=2&#960;*15=30&#960; inches<BR>\n" );
document.write( "speed of car=24rev/min*30&#960; inches/rev=72&#960; inches/min<BR>\n" );
document.write( "..<BR>\n" );
document.write( "speed of 2nd car/speed of 1st car=72/48=3/2 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );