document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=269628>Question 269628</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A boxed DVD set contains 21 movies from a certain studio. Twelve of them are comedies, six are thrillers, and three are dramas. What is the probability that one DVD chosen from the box at random is a thriller or a drama? Show step by step work! Give answer as a fraction in lowest terms. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #197601 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=197601\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A boxed DVD set contains 21 movies from a certain studio. <BR>\n" );
document.write( "Twelve of them are comedies, six are thrillers, and three are dramas. <BR>\n" );
document.write( "What is the probability that one DVD chosen from the box at random is a thriller or a drama? Show step by step work! Give answer as a fraction in lowest terms.<BR>\n" );
document.write( "---<BR>\n" );
document.write( "P(thriller or drama) = P(thriller) + P(drama)<BR>\n" );
document.write( "= 6/21 + 3/21<BR>\n" );
document.write( "= 9/21<BR>\n" );
document.write( "= 3/7<BR>\n" );
document.write( "==========<BR>\n" );
document.write( "cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );