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Grade 12 data management help?

There are 10 players on the basketball team, 12 players on the volleyball team, and 15 members of the track team. Of those players, 2 athletes are on all three teams. How many committees of 4 players can be formed if there must be at least 1 member from each team represented? Order doesn't matter.

The answer is 24 015. I have no idea how to do this question. We are supposed to use nCr with cases apparently.

February 23, 2014

6 Comments • Newest first

mush727

[quote=enoch129]http://www.studentawards.com/Forum.aspx?g=posts&t=44925
Google helps with EVERYTHING.[/quote]

LMAO I made that post ! XD

Reply February 24, 2014
enoch129

http://www.studentawards.com/Forum.aspx?g=posts&t=44925
Google helps with EVERYTHING.

Reply February 23, 2014
fradddd

@mush727: I'm in pre-calc grade 11 and I see what kind of method you're supposed to use but I don't know where to start.

Reply February 23, 2014
Gyroscope

Data becomes a lot easier after this permutation and combination unit.

Reply February 23, 2014
mush727

[quote=fradddd]This looks like a more advanced version of something I learned this year so I should probably be able to do it but I can't.[/quote]

Believe it or not this was a test question from my current data teacher from last semester. I got the test from my friend, idk how she expects anyone to get this question. We've never done anything this complicated.

Reply February 23, 2014
fradddd

This looks like a more advanced version of something I learned this year so I should probably be able to do it but I can't.

Reply February 23, 2014