document.write( "Question 589622: How many combination of three numbers there are in 1-20 numbers?
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Algebra.Com's Answer #374922 by edjones(8007)![]() ![]() You can put this solution on YOUR website! 20C3=20!/(17!*3!)=1140 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |