self
Maths Puzzle
Mismatched Joe is in a pitch dark room selecting socks from his drawer. He has only six socks in his drawer, a mixture of black and white. If he chooses two socks, the chances that he draws out a white pair is 2/3. What are the chances that he draws out a black pair?
Read Solution (Total 4)
-
- zero chances are there .
There are 5 white and 1 black sock. - 12 years agoHelpfull: Yes(3) No(0)
- 0 chances that he draws out a black pair.
Since there is a 2/3 chance of drawing a white pair,
Then there must be 5 white socks and only 1 black sock.
The chances of drawing two whites would thus be: 5/6 x 4/5 = 2/3 .
With only 1 black sock, there is no chance of drawing a black pair.
So, Zero chance of drawing a black pair. - 12 years agoHelpfull: Yes(1) No(2)
- zero
check at
http://answers.yahoo.com/question/index?qid=20110619015328AAPDDQP
www.braingle.com/brainteasers/14164/matching-socks.html - 12 years agoHelpfull: Yes(1) No(2)
- 0 chances to draw a black pair as only 1 black sock is there
- 12 years agoHelpfull: Yes(1) No(0)
self Other Question