A box contains 8 white socks, 4 black socks and 2 blue socks. If you reach in and pull out one sock, what are the odds that it will be a black sock? Write you answer in simplest form.

A.
2/7

B.
2/5

C.
1/2

D.
4/6

Question

A box contains 8 white socks, 4 black socks and 2 blue socks.  If you reach in and pull out one sock, what are the odds that it will be a black sock?  Write you answer in simplest form.

	A.	
2/7

	B.	
2/5

	C.	
1/2

	D.	
4/6

kropot72 · Answer

The odds are:
The probability of drawing a black sock: The probability of not drawing a black sock.

tylermckinney16 · Answer

So its A?

kropot72 · Answer

Can you show your calculation?

tylermckinney16 · Answer

8 white socks, 4 black socks and 2 blue sock
4 / ( 8 + 4 + 2 ) = 2/7

kropot72 · Answer

Well, that is the first part of the calculation of the required odds, being the probability of drawing a black sock. Now, what is the probability of not drawing a black sock?