Club Tribe DSE repeated question. Basic doubt

[Gayyam]

Hi guys,

I have a gap in the understanding of the often repeated question.

The question states that the individuals of the society belong to sets which are known as 'Clubs' or 'Tribes'. There are five rules governing tribes and clubs.



Where I have trouble is, in reconciling the fifth point with the first three. The first three points imply that all individuals form a club, plus that any subset of the society is a club. The fifth point however excludes any club member from being a tribe member (i.e. no one belongs to both, a club and a tribe). Now, this only means that no one belongs to a tribe (since everyone belongs to a club). But even a null set is a club.

Am I missing something glarongly obvious or is my understanding flawed?

Thank you!

[Aranya]

This is done by akshay! I think it can help u!

[SoniaKapoor]

Which paper answer is this...there are 3 similar quest of this type

[Gayyam]

Is this right? (According to the question in DSE 2005 at least) The third condition talks about unions, not intersections; while the fourth talks about intersection.

I do not understand this solution.

[Gayyam]

This is from DSE 2005, q5, q6, q7 and q8.

[SoniaKapoor]

also the first quest is on union and not on intersection...

and the first condition is entire society is a club and not tribe...m not getting nythng

[Akshay Jain]

DSE has asked this set of questions with some modifications every year....the solution is to 1 of these sets which was postedon forum I think about 2-3 days before.
The basic Idea to solve this set remains the same.

[The Villain]

please explain quest 6 of 2005

[cheesecake]

I think the answer given here corresponds to DSE 2011, questions 27, 28, 29 and 30 and not DSE 2005. The questions are differently worded.

[Anakin Skywalker]

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