there are 50 players in a chess group , and each player plays each of the others once . given that each game is played by two players , how many total games will be played ?
"50 players are there . two players play one game with one another . so 50 c 2 = 50 * 49 / 2 = 1225 so option c is correct"
divide(multiply(50, subtract(50, const_1)), const_2)