Which one of the following is a pair of foods of which the organizer of the luncheon must select at least one?

Jaimee-Salgado on October 3, 2018

Can you please explain?

Why is the answer O and P, instead of F and T

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Mehran on October 16, 2018

@Jaimee-Salgado this hypothetical shows that neither F nor T must be selected, which would eliminate (A) as the correct answer:

G O P W N/V | F T V/N

For (D), however, if neither O nor P is selected, that means N must be selected (rule 1), which means V cannot be selected (rule 5).

But we also know that if P is not selected, then W is not selected (rule 3), which would result in four variables not selected and only four variables available to be selected which violates the rules of this game (5 of 8 selected):

F G N T __ | O P V W

Hope that helps! Please let us know if you have any other questions.