Jack, George and Anne

Jack is looking at Anne, but Anne is looking at George. Jack is married, but George is not. Is a married person looking at an unmarried person?

A) Yes
B) No
C) Cannot be determined

A. If Anne is married, she’s looking at George, who is unmarried. If Anne is unmarried, Jack is looking at her.

Posted in Brain Teasers


18 Comments on "Jack, George and Anne"

freediverx says
August 7, 2019 @ 09:10

On the other hand, since we know nothing about Anne other than the fact she’s looking at George, one might argue that Anne may not be a person, and conclude that we have insufficient information to determine the answer.

Jason says
April 13, 2020 @ 10:05

You have to assume that a person has two states, married or unmarried. Widowed and divorced are ignored.

TripNines says
November 18, 2020 @ 19:49

Conjecture: Opinion or judgment based on inconclusive or incomplete evidence; guesswork.
I guess if Mary is married, the answer is “A”
I guess if Mary is unmarried, the answer is “B”
Otherwise, with the details provided, even if she were wearing a wedding band, the answer is “C”

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