Red Marble brain teaser?!
Question: Red Marble brain teaser!?
You have a bag that contains 1 marble in it!. The marble is either red or black!.
You take another marble, of identical size, which happens to be red, and put it in the bag as well
So the bag now contains two marbles --- one red one, and one that is either red or black
You shake up the bag and randomly pull out one marble!. The marble you pull out is red
What is the probability that the marble remaining in the bag is red!?
This is not as simple as it soundsWww@Enter-QA@Com
You take another marble, of identical size, which happens to be red, and put it in the bag as well
So the bag now contains two marbles --- one red one, and one that is either red or black
You shake up the bag and randomly pull out one marble!. The marble you pull out is red
What is the probability that the marble remaining in the bag is red!?
This is not as simple as it soundsWww@Enter-QA@Com
Answers:
67% Did I win!?! Did I win!?! Huh!? Huh!?Www@Enter-QA@Com
50/50 because if the first marble is red/black,and the second one was red,then the probablity of the one left in the bag being red is a 50% chance!.Www@Enter-QA@Com
75%Www@Enter-QA@Com
50%Www@Enter-QA@Com
25%Www@Enter-QA@Com
50%Www@Enter-QA@Com
it would be 50% !.!. wouldn't it!?Www@Enter-QA@Com
i'm gonna go with a 33% chance that the other marble is redWww@Enter-QA@Com
i would have to say 75%Www@Enter-QA@Com
it's not!?
my answer is 50/50
would love to know the answer and how you come to that conclusion if i'm wrongWww@Enter-QA@Com
my answer is 50/50
would love to know the answer and how you come to that conclusion if i'm wrongWww@Enter-QA@Com