## anonymous one year ago Gunner wants to buy 12 DVDs but he can only buy 2. How many ways can he buy 2 DVDs? FOR ME this is a trick question. Answer is 5?

1. anonymous

no

2. anonymous

the answer is the number of ways he can choose 2 out of 12, i.e $\binom{12}{2}$ or $_{12}C_2$

3. anonymous

it is called "12 choose 2" do you know how to compute it?

4. anonymous

I'm quite new to solving this problem.

5. anonymous

google "combinations" $\binom{12}{2}=\frac{12\times 11}{2}$

6. anonymous

Then its 66?

7. amistre64

are we assuming 2 different DVDs? are we assuming they are purchased together?

8. anonymous

@satellite73