A logic problem by Victor Paes Plinio
Logic
Level
2
We have 3 persons, Allie, Beth and Carl. Allie is looking at Beth, and Beth is looking at Carl.
Allie is married, but Carl isn't.
Is a married person looking at a not-married person?
Can't be Determined
Yes
No
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1 solution
Let's assume that Beth can be married or not married only. If she is married, then she is looking at Carl that is not married. But if she is not married, Allie who is married is looking to her. Then we can conclude that there is a married person looking to a not married person.