document.write( "Question 754172: A group of 7 members having a
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document.write( "majority of boys is to be formed out of
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document.write( "6 boys and 4 girls. The number of ways
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document.write( "the group can be formed is
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document.write( "(A) 80 (B) 100 (C) 90 (D) 110 \n" );
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Algebra.Com's Answer #458936 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A group of 7 members having a \n" ); document.write( "majority of boys is to be formed out of \n" ); document.write( "6 boys and 4 girls. The number of ways \n" ); document.write( "the group can be formed is:: \n" ); document.write( "----------------- \n" ); document.write( "# of boys must be 4,5,or 6 \n" ); document.write( "--- \n" ); document.write( "# with 4 boys: [6C4*4C3] = 15*4 = 60 \n" ); document.write( "# with 5 boys: [6C5*4C2] = 6*6 = 36 \n" ); document.write( "# of 6 boys: [6C6*4C1] = 1*4 = 4 \n" ); document.write( "--------------------------------------- \n" ); document.write( "# that meet the condition: 60+36+4 = 100 \n" ); document.write( "------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=================== \n" ); document.write( " \n" ); document.write( "(A) 80 (B) 100 (C) 90 (D) 110 \n" ); document.write( " \n" ); document.write( " |