Posted by **makeeda** on Thursday, January 28, 2010 at 10:20pm.

a sock drawer has 2 blue pair,4 white pair,4 black pair? what is the probability you will pick out a black pair ?

i think is 2/10 that how i get my answer but not for sure that correct

- math -
**Reiny**, Thursday, January 28, 2010 at 10:33pm
depends if the socks are bundled in pairs or as singles.

If in pairs, ...

you have 10 pairs of which 4 are black, you want to pick one black pair.

prob = 4/10 or 2/5

if they are singles, ...

you have 8 black, 8 white, and 4 blue socks for a total of 20 socks.

you want 2 consecutive blacks

prob = 8/20 x 7/19 = 56/380 = 14/95

## Answer this Question

## Related Questions

- math - a sock drawer has 2 blue pair, 4 white pair, 4 black pair. what is the ...
- math - a sock drawer has 2 blue pair, 4 white pairs, 4 black pair. what is the ...
- math - Yosuf has three grey socks and four blue socks in his sock drawer. He ...
- Math - You are about to leave for vacation, but you forgot your socks! You go ...
- Math - There are 22 gloves in a drawer. 5 brown pair, 4 green pair, and 2 blue ...
- math - a sock drawer contains 10 white socks, 6 black socks, and 8 blue socks. ...
- algebra - A drawer contains 2 black sock, 8 gray saocks, adn 3 blue socks. ...
- English - Could you please check if everything is ok? It's really urgent. 1)The ...
- Algebra - You have a very messy sock drawer with 3 blue socks, 5 black socks, ...
- Math Check - Let’s say you have a bedroom drawer that contains about 2 red socks...

More Related Questions