A drawer contains 12 brown socks, 8 white socks, and 2 blue socks. One sock is selected at random.

What is the probability that the sock is blue, given that it is not brown?

A. 1/4
B. 1/5
C. 1/10
D. 1/11

Question

A drawer contains 12 brown socks, 8 white socks, and 2 blue socks. One sock is selected at random.

What is the probability that the sock is blue, given that it is not brown? 

A. 1/4
B. 1/5
C. 1/10
D. 1/11

anonymous · Answer

Okay so,
Probablity's formula is :
Favourable Items
===========
Total Items


We know that It can't be brown.

anonymous · Answer

The probability that the sock is blue when selected at random is

2 <--blue, favourable
10<- white+blue =total.

anonymous · Answer

So,
$$\frac{ 2 }{ 10 } =\frac{ 1 }{ 5 }$$

anonymous · Answer

Understand? @MIS08

anonymous · Answer

Yes I understand. Thanks for explaining that to me

anonymous · Answer

yw. :)