document.write( "Question 1109902: How many ways can 19 boys and 2 girls be arranged in sequence \n" ); document.write( "

Algebra.Com's Answer #724872 by ikleyn(52777) $\"\"$ $\"About$

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document.write( "In all, there are 21 = 19+2 persons to be arranged in sequence.\r\n" );
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document.write( "Anyone of     21           persons can be placed in the 1-st position.\r\n" );
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document.write( "Anyone of the 20 remaining persons can be placed in the 2-nd position.\r\n" );
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document.write( "Anyone of the 19 remaining persons can be placed in the 3-rd position.\r\n" );
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document.write( "   . . . and so on . . . \r\n" );
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document.write( "In all, there are 21! arrangements.\r\n" );
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