Question

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?

Answer 1

no

Answer 2

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

Answer 3

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

Answer 4

I'm quite new to solving this problem.

Answer 5

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

Answer 6

Then its 66?

Answer 7

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

Answer 8

@satellite73