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What are the hats color?

Four women are standing in a line and they cannot turn their heads. There is a vase between A and B that they cannot see through. They know that they each have one hat, and that two hats are green and two are red. They cannot see the color of the hat that they are wearing and they are not allowed to talk to each other. they must call out the color of their hat. If they are wrong, no one can leave the line. A and B see nothing. C sees B. which one called out? and how she can be 100% certain of the color of her hat?

D would call out if she would see that C’s hat and B’s hat were the same color, then she would have known that her own hat was the opposite color of B’s and C’s hat. Since D did not speak, then C knows that her hat is the opposite color of B’s.

What are the hats color?

Four women are standing in a line and they cannot turn their heads. There is a vase between A and B that they cannot see through. They know that they each have one hat, and that two hats are green and two are red. They cannot see the color of the hat that they are wearing and they are not allowed to talk to each other. they must call out the color of their hat. If they are wrong, no one can leave the line. A and B see nothing. C sees B. which one called out? and how she can be 100% certain of the color of her hat?

D would call out if she would see that C’s hat and B’s hat were the same color, then she would have known that her own hat was the opposite color of B’s and C’s hat. Since D did not speak, then C knows that her hat is the opposite color of B’s.

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