Discussion

Which one of the following CANNOT be the complete color combination of the glass in one of the windows?
(A)green and orange
(B)...
(C)...
(D)...
(E)...
(F)...
*This question is included in PT 62 LG, question #8

The solution is

Posted: 08/16/2011 10:05
I thought this would be D because purple and orange cannot co-exist
Posted: 08/17/2011 00:23
Rule 4 says "~P --> O". The contrapositive of Rule 4 is "~O --> P".
What this means is that each window MUST have O or P (and that a window could have BOTH P and O).


Here's the setup for the game:

G, O, P, R, Y

Rule 1: (G + P) x1 *exactly*
Rule 2: R x2 *exactly*
Rule 3: Y --> ~G, ~O
Rule 4: ~P --> O

CPos 3: (O or G) --> ~Y
CPos 4: ~O --> P

Rule 3 + CPos 4: Y --> ~O --> P

___ ___ ___
P/O
___ ___ ___
P/O
___ ___ ___
P/O


Q 8:
(A) This answer choice contains O.
(B) This answer choice contains P.
(C) This answer choice does not contain P or O, so it CANNOT be true.
(D) This answer choice contains O.
(E) This answer choice contains O.


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