document.write( "Question 764478: In how many ways can 10 different books be divided a and b so that one gets 6 books and the other 4 books? \n" ); document.write( "

Algebra.Com's Answer #465503 by ramkikk66(644) $\"\"$ $\"About$

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document.write( "This is the same as asking \"In how many ways can you choose 4 books out of a set\r\n" );
document.write( "of 10 books?\" Because once you choose a set of 4, the other set is automatically \r\n" );
document.write( "6.\r\n" );
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document.write( "So the number of ways is C(10,4) (which is also equal to C(10,6) since C(N,n) \r\n" );
document.write( "is the same as C(N,N-n))\r\n" );
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document.write( "=  = 210 ways.\r\n" );
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