Westonci.ca is the best place to get answers to your questions, provided by a community of experienced and knowledgeable experts. Get quick and reliable solutions to your questions from a community of experienced professionals on our platform. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.

12 people have entered a chess tournament. Each person is scheduled to lay every other person once. How many games are scheduled for the tournament?

Sagot :

Ematio
12 * 12 equals 144. Each person plays every other person.
(12 * 11)/2 = 66 games

C(12,2) --> combination of 12 taken 2 at a time = 66