Thursday

August 21, 2014

August 21, 2014

Posted by **Marko** on Thursday, February 2, 2012 at 10:20pm.

Can you help me figure this out ?

- Math word problem -
**Reiny**, Thursday, February 2, 2012 at 10:32pmEach of the 9 players would play against 8 others, that would give us 9x8 or 72

BUT, wouldn't that include such games as

A vs B and B vs A, which is the same game.

So we have to divide by 2 to get all those duplications taken out

number of games = 72/2 = 36

In mathematical symbols that would be

C(9,2) = 9!/(2!7!) = 36

- Math word problem -
**Anonymous**, Friday, February 3, 2012 at 11:54amJohn has five more than twice the number of CDs that Kate has. Together they have 100 CDs

**Related Questions**

Algebra Grade 7 - The eight members of the Ping Pong Paddlers Club have a ...

math - in a round robin tennis tournament involving 7 players, each player will...

mathematics - in a round robin tennis tournament involving 7 players, each ...

college microeconomics - Suppose that two players are playing the following game...

math-i have another question - Player A and B invented a new game. The ...

Math - In the Doubles Game, students can win carnival tickets to spend on games ...

microeconomics - . Suppose that two players are playing the following game. ...

Algebra 2 - Game Theory: Consider a game in which each of two people ...

Maths - The game Slice is played using a m×n rectangular piece of paper as a ...

Statistics - The local lottery sets up a game wherein a player has a chance of ...