Wednesday, February 25, 2009

I am Jenn And I am not smarter then a 4th grader!

OK 4th grade math problem. I have a potential answer of ten but the 4th graders are insisting the answer is 20 games or 4 rounds.

Five teams are competing in a tournament. Each team must
compete against each of the other teams once. How many
rounds of competition are needed.

What say yeeeeeeeeeeeeeeeeeeeehaw? I will post my work in the comment section after a few of you all offer me your two cents.

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11 Comments:

Blogger Jeni said...

I have no idea if I am right or not -word problems were never my strong point (no math was my strong point) -but the way I figure it, the answer would be -I think -4 rounds and 20 games, wouldn't it?

2/25/09, 10:51 PM  
Blogger The W.O.W. factor said...

Ten rounds....

2/26/09, 12:05 AM  
Blogger Red said...

that just add's to the confusion!

I get (and half the adults) 10 here is how. If you name the teams A B C D E.
A+B A+C A+D A+E
B+C B+D B+E
C+D C+E
D+E

But the two little girls (who's homework it is) both get 20 games and 4 rounds and half of the adults get that.

Two adults get 25

2/26/09, 3:49 AM  
Blogger dr sardonicus said...

Five rounds. Check your mail.

2/26/09, 8:08 AM  
Blogger Philly said...

I think that they have to play ten games.

Teams:
A has to play b,c,d,e

B has to play c,d,e. B has
already played a in A.

C has to play d,e. C already
played a and b, in A and B.

D has to play E. I has already
played a,b,c in A, B and C.

E has alreay played everybody.

2/26/09, 8:26 AM  
Blogger Renie Burghardt said...

Hmmmmmmm! I think Philly might be correct, but what do I know? Math has never been my strong point.

Hope you're having a great day.

Hugs!

Renie

2/26/09, 10:43 AM  
Blogger dr sardonicus said...

The question is not how many games, but how many rounds. Y'all are correct - the tournament requires that ten games be played. But each round consists of two games (with four teams) plus one team will have a bye. After five rounds, everyone will have played everyone else, and will also have had one bye.

Five-team tournaments are a bitch; sponsors try to get even numbers if at all possible.

2/26/09, 12:10 PM  
Blogger Red said...

Cool. Thanks Guys. BTW I asked HER teacher after school because she wouldn't answer Molly and you know what that crazy ass said? She said, "I guess you will find out the answer if Amanda gets it wrong" OOOOoooOOooh

2/26/09, 6:25 PM  
Blogger Red said...

and Philly and I's Statistic teacher said this VIA the E-mail I asked him
"Yes, 10 is correct. n(n-1)/2 is the formula"

2/26/09, 6:27 PM  
Blogger dr sardonicus said...

Which only proves that a statistics teacher can't tell the difference between a game and a round.

2/26/09, 8:18 PM  
Blogger The W.O.W. factor said...

...and my 'formula' was my fingers! Guess I come from the OLD school...

2/28/09, 11:04 PM  

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