document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=884670>Question 884670</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car travels 2 hours at uniform speed. If it will slow down to 1/2 of original speed, the car reaches its destination 30 minutes later covering a total distance of 84 km. What is the original speed? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #534569 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=534569\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A car travels 2 hours at uniform speed. If it will slow down to 1/2 of original speed, the car reaches its destination 30 minutes later covering a total distance of 84 km. What is the original speed?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=original speed<BR>\n" );
document.write( "distance=travel time*speed<BR>\n" );
document.write( "..<BR>\n" );
document.write( "2x+x/2*1/2=84<BR>\n" );
document.write( "2x+x/4=84<BR>\n" );
document.write( "9x/4=84<BR>\n" );
document.write( "9x=336<BR>\n" );
document.write( "x=37-1/3 km/hr<BR>\n" );
document.write( "original speed=37-1/3 km/hr </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );