document.write( "Question 38820: How many different three-number \"combinations\" are possible on a combination lock having 25 numbers on its dial with out repeating a number? \n" ); document.write( "
Algebra.Com's Answer #24281 by Nate(3500)![]() ![]() ![]() You can put this solution on YOUR website! C(25,3) = 25!/((22!)(3!)) = 2300 \n" ); document.write( "2300 different combinations. \n" ); document.write( " |