document.write( "Question 402736: How many different ways can 4 people: Andy, Betty, Cindy, and Doug, sit in a row at the opera if Andy and Betty must sit together. I think the answer is 12.
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Algebra.Com's Answer #284864 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How many different ways can 4 people: Andy, Betty, Cindy, and Doug, sit in a row at the opera if Andy and Betty must sit together. I think the answer is 12. \n" ); document.write( "-------------------- \n" ); document.write( "A/B act like one person. \n" ); document.write( "So there are 3! ways to arrange the \"3\" people \n" ); document.write( "-- \n" ); document.write( "A/B can be arrange in 2! = 2 ways. \n" ); document.write( "--- \n" ); document.write( "Total arrangements: 3!*2 = 6*2 = 12 \n" ); document.write( "---- \n" ); document.write( "You are correct. \n" ); document.write( "===================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |