The Hats

Logic Level 3

There are 2 are black hats and 3 white hats. Three of them are selected at random and placed on three people standing in a straight line. The person in the back speaks first.

What color is the person in the front wearing?

Note: Assume all of them are perfectly rational, and each person can only see the hats of the people in front of them.

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100 Day Summer Challenge

The Hats

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Courses

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Community

100 Day Summer Challenge

The Hats

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations, examples, and problems from the community.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts, including olympiad champions, researchers, and professionals.

Master advanced concepts through explanations,
examples, and problems from the community.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

Master advanced concepts through explanations,
examples, and problems from the community.

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.