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Four Colored Balls in Gym Class

Four different-colored balls are being used in a gym class activity – blue, red, yellow and orange. Each student must hold two different-colored balls, but no two students can have the same two colors (for example, only one student can hold the blue and red ball).

How many students can play the game?

Six. If you prefer math, you can calculate it as 4 combination 2

4! / (2!)^2
24 / 4 = 6

Or you can work it out manually:

1. Blue Red
2. Blue Yellow
3. Blue Orange
4. Red Yellow
5. Red Orange
6. Yellow Orange


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No Comments on "Four Colored Balls in Gym Class"


Zack. B. Claasified says
January 19, 2017 @ 20:16

I totally am not able to comprehend most of the content and this definitely boggles my mind.
I need to get in the game.
This is bad. LOL


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