Question

Four balls are placed in a bowl. One is Green, one is Black and the other two are Yellow. The bowl is shaken and someone draws two balls from the bowl. He looks at the two balls and announces that atleast one of them is Yellow. What are the chanches that the other ball he has drawn out is also Yellow?

This one is really hard guys, sorry xD

Answer 1

1/5

There are six possible pairings of the two balls withdrawn,
Yellow+Yellow
Yellow+Green
Green+Yellow
Yellow+Black
Black+Yellow
Green+Black.

We know the Green + Black combination has not been drawn.

This leaves five possible combinations remaining. Therefore the chances tbowl the Yellow + Yellow pairing has been drawn are 1 in 5.

Many people cannot accept tbowl the solution is not 1 in 3, and of course it would be, if the balls had been drawn out separately and the color of the first ball announced as Yellow before the second had been drawn out. However, as both balls had been drawn together, and then the color of one of the balls announced, then the above solution, 1 in 5, must be the correct one.

Answer 2

He's right becuase he saw the balls the person drew

Answer 3

because*

Answer 4

Omg you looked it up! What the frick, that's not allowed

Answer 5

lol sure it is

Answer 6

I didnt. I looked literally

Answer 7

Bella looked up the last one too.

Answer 8

yah i did :D

Answer 9

"he looks at the two balls"

Answer 10

Am I right?