Ask a New Question

Question

If 12 people are playing in a tournament and each person plays every other person, how many games will be played?
11 years ago

Answers

nonononono
Mrs. Sue??
11 years ago
nonononono
Reiny
11 years ago
bobpursley
The first person plays 11, the second plays 10, the thrid plays 9

number games=11+10+9+...+1
the sum of numbers from n-1 to 1, or
number= N*(n-1)/2=12*11/2= 66
11 years ago
Reiny
number of subsets of 2 elements from a sample space of 12
= C(12,2) = 66
11 years ago
aa
n*(n-1)/2
9 years ago
Katharine
66 people. Just do 132 / 2.
8 years ago

Related Questions

i like playing playing volleyball with my friends. is this a good sentence? 6 people are playing Secret Santa for Christmas. They will each give one gift to someone, and each r... 12 people are playing in a tennis comprtition.Each person must play one game against each other pers... Six people are playing Secret Santa for Christmas. They will each give one gift to someone, and each... You are playing with a yo-yo with a mass of 225 g. The full length of the string is 1.2 m. (a) Cal... I’ve been playing it was 1.5 m high when we can go and seven days ago and 15 cm find the current hei... I was just playing If you’re playing tug-of-war, and the left side is 400 N in the right side is 300 N white force woul... If you’re playing tug-of-war and to the left is 400 N to the right 300 N what amount of force of mag... The dog is playing with (she, her). (1 point) she her
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use