L
Legally Blind
Guest
Mr. Bob distributed 4 bags to Allan, Brian, Charlie and David. He said: Each of you have a bag of red and/or white balls. Every bag has 3 balls. The numbers of red balls in all the bags are different. Even each bag has a lable to indicate what each bag contains, all labels are completely wrong. Now, you can take out 2 balls from the bag and tell me what the color of the 3rd ball is.
Allan took out 2 red balls from his bag. after he compared the label he tole Mr. Bob what the color of the third ball was immediately
Brian took out 1 red ball and one white ball from his bag. after he compared the label he told Mr. Bob the color of the third ball immedeiately also.
Charlie took out 2 white balls from his bag, after he compared the lable he could not tell what color the third ball was.
however, david said to Mr. Bob: I can tell the color of all 3 of my balls. he did correctly. But how?
also, can you tell what the labels said and what kind of balls each person had?
Allan took out 2 red balls from his bag. after he compared the label he tole Mr. Bob what the color of the third ball was immediately
Brian took out 1 red ball and one white ball from his bag. after he compared the label he told Mr. Bob the color of the third ball immedeiately also.
Charlie took out 2 white balls from his bag, after he compared the lable he could not tell what color the third ball was.
however, david said to Mr. Bob: I can tell the color of all 3 of my balls. he did correctly. But how?
also, can you tell what the labels said and what kind of balls each person had?