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Cheryl’s birthday – solution
(Read the problem here) To get conclusion of the problem, we have three important information from Albert and Bernard’s conversation: Albert knows that Bernard does not know Bernard knows the answer after point 1 is known Albert knows the answer after point 2 is known So here we have initial options: May 15 …
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Cheryl’s Birthday part 2 – solution
In the annoying Cheryl’s birthday problem part 2 (go here if you haven’t read it), we have additional member; David. So it’s getting more complex than the previous one. And here is my answer: (apologize ahead for grammatical errors) To get the conclusion of the problem, we have seven important points from the…
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Cheryl’s Birthday part 2
Seriously, Cheryl is so annoying. Not only she plays hard to get, she changes her birthday! Ok, this is another puzzle about Cheryl’s birthday. There’s an additional member here; David. Albert, Bernard, and David just became friends with Cheryl, and they want to know when her birthday is. Cheryl gives them a list of…