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Five Sentences (Posted on 2004-10-12) Difficulty: 3 of 5
Which of the following 5 sentences are true?

a) It is not the case that 2 consecutive sentences are both false.
b) There are fewer false than true sentences.
c) It is not the case that 3 consecutive sentences are all false.
d) It is not the case that 2 consecutive sentences are both true.
e) There are exactly 3 false sentences.

See The Solution Submitted by Brian Smith    
Rating: 3.1538 (13 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(2): Explanation | Comment 10 of 33 |
(In reply to re: Explanation by nikki)

If D is true, there cannot be two consecutive true statements, so C cannot be true. (E cannot be true either, but we already knew that.)
  Posted by Federico Kereki on 2004-10-12 20:12:48

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