## 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"

Richard says
March 28, 2016 @ 08:40

I don’t get it.

Is it implied that they are looking at each other? (Rather than one-way unrequited looking.)

ATGrace says
March 28, 2016 @ 09:06

Wrong, we don’t know if Anne or George are human. The answers unknown. Get on my level scrubs.

Phil says
March 28, 2016 @ 10:33

Wait. What? Your logic is based on an “if statement” which makes it indeterminable as an if statement can branch to two (or more) outcomes and we don’t know exactly what her marital status is. If that is logic then we are in trouble.

Randall says
March 28, 2016 @ 16:56

It all depends on who george is looking at.

Ranga says
March 28, 2016 @ 19:22

Assume –
U = Unmarried M = Married

If Anne is Unmarried:
M (Jack) -> U (Anne) -> U (George)

If Anne is Married:
M (Jack) –>M (Anne) –>U (George)

In both ways Its M —> U (Married looking at Unmarried)
Therefore
(A) Yes

Ian Reeve says
March 29, 2016 @ 16:45

The marital status of Ann is entirely irrelevant

TomH says
April 4, 2016 @ 09:32

The question is valid. It’s not asking who is married/unmarried. It’s asking if a married person is looking at an unmarried person. The answer is “Yes.” The detail of Anne’s marriage status is only relevant when you want to know who is actually married/unmarried which is not what the question was asking.

June 9, 2016 @ 14:52

That’s incorrect because Anne’s marital status is not disclosed to it cannot be determined. I do NOT go through life living on assumptions I state and live by fact

Riaan says
June 10, 2016 @ 16:33

The answer is “C) Cannot be determined” because it is not stated that John, Anne and George are people

So if John is a cat, who is looking at Anne the dog, who is looking at George the turtle,
Then the answer is B) No.

But you do not have the information about the species

Jon says
June 12, 2016 @ 08:12

Yes. There are enough facts. No assumptions necessary

AyoolaIgwe says
June 29, 2016 @ 00:01

very controversial IQ test question… the analogy for picking “yes” is not convincing yet.

I find it fascinating that anyone would consider the answer controversial. The answer is logically irrefutable.

Joshua says
August 11, 2016 @ 22:14

Anne would be unmarried. This is to why Anne is depressed. She is looking at ‘HERSELF’ in the mirror. Which basically is telling us: Anne is Unmarried, but George is Married. John is married with George. Therefore, Anne is left out and is suicidal.

Snypaz says
September 15, 2016 @ 17:38

Jack is married. If Jane is unmarried, then YES.. Jack, a married person is looking at Jane, an unmarried person. However, if Jane is married, then she is the married person looking at George, the unmarried person. GG.

freediverx says
August 7, 2019 @ 09:07

>Riaan

Marriage is a social construct between persons, not animals. We are told that Jack is married so therefore we can assume he is a person. Likewise, we may infer that George is a person given the statement that he is unmarried, since there would be no point in declaring the marital status of a subject that couldn’t possibly be married.

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”