i have been working on this question for at least an hour and still couldnt get the answer.

Question:

Naomi a fan of alternative has 12CDs:

3 Nine Inch Nails

2 Sound Garden

2Monster magnet

1Pretty twisted

2Queensryche

If Naomi randomly loads her player with 5 CDs. What is the probability that will hold

a) Exactly 1 Sound Garden

b) 3 Nine Inch Nails or 3 Sound Garden

I did:

a)2C1TIMES11C4

12C5 12C5

b)3c3Plus3C3

12C5 12C5

Thanks.