Question

A group of 12 students have formed a club. They have decided to set up an "executive committee" of four of the members of the club. All four of the members of the committee will have equal power. How many ways could the club select four members for the executive committee?
multiply then divide 495
or just multiply 11,880

Answer 1

Compute 12 C 4 to find your answer. Do you know how to do this?

Answer 2

yes il either multiply 12 x 11 x10 x9
or divide by 6

Answer 3

Yes you start by multiplying 12 x 11 x 10 x 9

Then you divide this result by 4! = 4*3*2*1 = 24

Answer 4

I think this is permutation!

Answer 5

no, all positions are of equal power

Answer 6

so order doesn't matter

Answer 7

Oh, just read it again!

Answer 8

permutation is only when you multiply?

Answer 9

yes, if order mattered, then the answer would be 12 x 11 x 10 x 9 multiplied out

Answer 10

which is a permutation

Answer 11

now waht

Answer 12

what did you get

Answer 13

well i believe if i divided it be 11880/24=495
or just the permutation answer i dont know the rules so i cant really decide

Answer 14

you have the correct answer, it's 495

Answer 15

rule: if order matters, then use a permutation. If order does NOT matter, then use a combination

Answer 16

yes ur right my answer was correct 495