Answer to Question #158091 in Discrete Mathematics for Djanel Alva

Question

Yesterday, Allan, Berto, and Carlo are playing guess that day. Berto and Carlo gives Allan clues and fake clues. Berto said today is Friday, but Carlo said its Saturday. Allan asked what day is it tomorrow? Carlo said its Monday while Berto said its Tuesday. Allan asked again, what day was it yesterday? Berto said Wednesday, while Carlo said its Thursday. Berto and Carlo have given one correct clue and two fake clues. What day is it today?

Answer 1

If we suppose Berto said truth that today it is Friday, then the only possible truth of Carlo is that yesterday it was Thursday, in this case all other statements are false.

So, today is Friday.