document.write( "Question 290453: A speaker was so boring that one-half of the audience left after
\n" ); document.write( "a few minutes. Five minutes later, one-third of the remaining audience left. Ten minutes later, one-fourth of those remaining left, leaving only nine people in the audience. How many people were in the audience at the beginning of the lecture?\r
\n" ); document.write( "\n" ); document.write( "(a) 21 (b) 36 (c) 72 (d) 144 (e) 216\r
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Algebra.Com's Answer #210274 by ankor@dixie-net.com(22740)\"\" \"About 
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one-half of the audience left after a few minutes.
\n" ); document.write( " Five minutes later, one-third of the remaining audience left.
\n" ); document.write( " Ten minutes later, one-fourth of those remaining left, leaving only nine people in the audience.
\n" ); document.write( "How many people were in the audience
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\n" ); document.write( "Let x = no. in the audience
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\n" ); document.write( "\"one-third of the remaining audience left.
\n" ); document.write( "that leaves 2/3
\n" ); document.write( "\"2%2F3\"*(\"1%2F2\"x) = \"2%2F6\"x = \"1%2F3\"x
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\n" ); document.write( "\"one-fourth of those remaining left,\"
\n" ); document.write( "that leave 3/4
\n" ); document.write( "\"3%2F4\"*\"1%2F3\"x = \"3%2F12\"x = \"1%2F4\"x
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\n" ); document.write( "\"leaving only nine people in the audience. \"
\n" ); document.write( "\"1%2F4\"x = 9
\n" ); document.write( "Multiply by 4
\n" ); document.write( "x = 36 people in the audience\r
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