document.write( "Question 423717: Consider a list of randomly generated 4-letter \"words\" printed on a paper. The letters cannot be repeated.\r
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document.write( "A) At least how many of these \"words\" should be printed to be sure of having at least 9 identical \"words\" on the list?\r
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document.write( "B)At least how many identical \"words\" are printed if there are 3588001 \"words\" on the list? \n" );
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Algebra.Com's Answer #295457 by sudhanshu_kmr(1152)![]() ![]() You can put this solution on YOUR website! no. of possible 4 letters words = 26*25*24*23 = 358800\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "A) minimum number of words to be sure of having at least 9 identical words\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "= 358800 * 8 + 1\r \n" ); document.write( "\n" ); document.write( "= 2870401\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "B) 3588001 = 10 * 358800 + 1 \r \n" ); document.write( "\n" ); document.write( "(after divide by 358800 we find 10 as quotient and 1 as remainder)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "so, at least 11 identical words are printed.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |