[Answer] The Question: 100 prisoners in jail are standing in a queue facing in one direction. Each prisoner is wearing a hat of color either black or red. A prisoner can see hats of all prisoners in front of him in the queue, but cannot see his hat and hats of prisoners standing behind him.

Answer: The 99’th prisoner decides his answer on the basis of the answer of the 100’th prisoner’s answer. There are the following possibilities and 99’th prisoner can figure out the color of his hat in every case.

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The Question: 100 prisoners in jail are standing in a queue facing in one direction. Each prisoner is wearing a hat of color either black or red. A prisoner can see hats of all prisoners in front of him in the queue but cannot see his hat and hats of prisoners standing behind him. 100 prisoners in jail are standing in a queue facing in one direction. Each prisoner is wearing a hat of color either black or red. A prisoner can see hats of all prisoners in front of him in the queue but cannot see his hat and hats of prisoners standing behind him . 100 prisoners in jail are standing in a queue facing in one direction. each prisoner is wearing a hat of color either black or red. a prisoner can see hats of all prisoners in front of him in the queue but cannot see his hat and hats of prisoners standing behind him . the jailer is going to ask color of each prisoners hat starting from the last prisoner in queue . if a prisoner tells the ... Prisoners with Red/Black Hats. The following problem is a famous online puzzle: One hundred prisoners in jail are standing in a queue facing one direction. Each prisoner is wearing a hat of color either black or red. A prisoner can see hats of all prisoners in front of him in the queue but cannot see his hat and hats of prisoners standing ... The 99’th prisoner decides his answer on the basis of answer of 100’th prisoner’s answer. There are following possibilities and 99’th prisoner can figure out color of his hat in every ca...

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