A Conversation for The H2IQ Quiz - Be The First Among Equals
Monday 07th October 2002
GreeboTCat Started conversation Oct 7, 2002
Given: Four pieces of cardboard. You are told that each one is either red or green on one side and that each one has either a circle or a square on the other side. They appear on the table as follows:
1. Red 2. Green 3. Circle 4. Square
Which ones must you pick up and turn over in order to have sufficient information to answer the question: Does every red one have a square on its other side?
Monday 07th October 2002
Geggs Posted Oct 7, 2002
Oh why do I have to be so busy at this time of day?
I'm with Danny, it's 1 & 3.
If reverse of 4 was green it wouldn't matter. The question is whether all reds have squares, not whether all squares have reds.
Geggs
Monday 07th October 2002
Danny B Posted Oct 7, 2002
Geggs - that's a much better way of explaining it than the 12-line post I was trying to write 
Monday 07th October 2002
spook Posted Oct 7, 2002
i'm with dancer, it's 1, 3 and 4. 4 may not be a red, it may be a green. the onlyone u need not check is the one that is definately green, 2.
spook
Monday 07th October 2002
Livzy Posted Oct 7, 2002
all of them
(Livzy's back... prepare for nonsense, sarcasm, wit, rudeness and general misbehaving)
Monday 07th October 2002
Danny B Posted Oct 7, 2002
But it doesn't matter if 4 is green (I hope ). As Geggs said:
"The question is whether all reds have squares, not whether all squares have reds."
Monday 07th October 2002
GreeboTCat Posted Oct 8, 2002
Congratulations Danny... a correct answer gets the point... ~grin~
Key: Complain about this post
Monday 07th October 2002
- 1: GreeboTCat (Oct 7, 2002)
- 2: Danny B (Oct 7, 2002)
- 3: Dancer (put your advert here) (Oct 7, 2002)
- 4: Demon Drawer (Oct 7, 2002)
- 5: Gnomon - time to move on (Oct 7, 2002)
- 6: Geggs (Oct 7, 2002)
- 7: Danny B (Oct 7, 2002)
- 8: Geggs (Oct 7, 2002)
- 9: spook (Oct 7, 2002)
- 10: Livzy (Oct 7, 2002)
- 11: Danny B (Oct 7, 2002)
- 12: Livzy (Oct 7, 2002)
- 13: GreeboTCat (Oct 8, 2002)
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