Multiple choice general knowledge

No healthy food is fattening. All cakes are fattening.

  1. All cakes are healthy.

  2. No cakes are healthy.

  3. None

  4. Both
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is a valid syllogism: No healthy food is fattening (healthy ∩ fattening = ∅). All cakes are fattening (cakes ⊆ fattening). Since cakes are a subset of fattening things, and no fattening thing is healthy, it follows that no cakes are healthy.

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