document.write( "Question 221650: This problem stumps me..can u please explain how to work it??\r
\n" ); document.write( "\n" ); document.write( "The producer of All Things Considered, a radio-news program on NPR, has 4 in-depth and 8 short news stories for broadcast during the next two hours. The producer must arrange the in-depth and short stories by starting with an in-depth story followed by two short stories, and then another in-depth story and two short stories until all 12 stories have been aired. How many arrangements for the broadcast are possible?
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Algebra.Com's Answer #166209 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The producer of All Things Considered, a radio-news program on NPR, has 4 in-depth and 8 short news stories for broadcast during the next two hours. \r
\n" ); document.write( "\n" ); document.write( "The producer must arrange the in-depth and short stories by starting with an in-depth story followed by two short stories, and then another in-depth story and two short stories until all 12 stories have been aired. \r
\n" ); document.write( "\n" ); document.write( "How many arrangements for the broadcast are possible?
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\n" ); document.write( "1st segment: 4 ways
\n" ); document.write( "2nd/3rd segment: 8*7 ways
\n" ); document.write( "4th segment: 3 ways
\n" ); document.write( "5th/6th segment: 6*5 ways
\n" ); document.write( "7th: 2 ways
\n" ); document.write( "8th/9th segment: 4*3 ways
\n" ); document.write( "10th: 1 way
\n" ); document.write( "11th/12th: segment: 2*1
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\n" ); document.write( "Total # of ways: 4!*8! = 967680
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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