Question

In how many ways can you arrange 6 CD’s from a collection of 50 CD’s?

Answer 1

I think this might be a combination so it's:
\[\frac{ 50! }{ (50-6)!*6! }\]

Answer 2

ok 8.23773888

Answer 3

You are looking at permutations, not combinations. Take the 6 factorial out of Luigi's answer and you've got it. Big number.

Answer 4

ok so its 11, 441, 304, 000

Answer 5

Hm, are you sure? Permutations is when you are looking for a certain order, like if it said there are 8 runners, how many ways can you arrange 1st, 2nd, and 3rd or something like that

Answer 6

@RadEn @AravindG @ganeshie8

Answer 7

yea, just ignore us.. that's nice ropa -_-

Answer 8

ropa?

Answer 9

Yes, Luigi, I'm sure.

If the question were "how many collections of 6 CDs can you get from 50 CDs" that's combinations.

The question, however, was "how can you ARRANGE [a selection] of 6 CDs from 50 CDs?"

Each of your combinations can be rearranged.

That's why it's p[permutations - order counts.

Answer 10

so whats the answer?

Answer 11

Luigi's answer without the 6 factorial in the denominator.

Answer 12

thats it?

Answer 13

Well if you say so then

Answer 14

You want more complex?

Answer 15

can you type me the answer so I can know were on the same page

Answer 16

No. If you are studying this topic you can propose an answer, but helpers aren't here to simply give you the answer.

What do you get?

Answer 17

Dude I put two answers already why don't you scroll up and look

Answer 18

Great help -__- @Luigi0210 @NoelGreco

Answer 19

Sorry buddy, rules ^_^'