Posts: 4812
From: South of the Thumb - Taurus, Pisces, Cancer
Registered: Sep 2004

posted January 18, 2008 01:13 PM         

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Admittedly I am lousy at figuring out riddles.

So I prefer giving you guys the challenges and let you rack your brains.

I will give you the answer when you either guess it right or plead for mercy for the answer.

Some are easier than others I think.

Challenge#1

A drawer contains 10 brown socks and 10 black socks.

In the dark, how many socks must you remove before you're guaranteed to have a pair of matching socks?

I would just turn on the light. Hee hee

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Posts: 5378
From: Ontario, Canada
Registered: Jun 2005

posted January 18, 2008 01:59 PM         

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I would just rather be left in the dark on this one!!! This way I wouldn't even know if I had a pair on or not, so will other's!!! LOL!!

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Posts: 5378
From: Ontario, Canada
Registered: Jun 2005

posted January 18, 2008 02:02 PM         

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Mirandee, I think we're all in the dark on this one!!! LOL!!!

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Posts: 2282
From:
Registered: May 2007

posted January 18, 2008 02:10 PM         

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I will prefer to go without socks!

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Posts: 5378
From: Ontario, Canada
Registered: Jun 2005

posted January 18, 2008 03:22 PM         

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Why, did you lose them in the DARK!!! LOL!!!

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Posts: 5378
From: Ontario, Canada
Registered: Jun 2005

posted January 18, 2008 03:25 PM         

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Well now I got 10 brown ones and 10 black ones!!! Please don't just leave me here alone in the DARK!!!!

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Posts: 235
From: sydney, nsw, oz
Registered: Jan 2006

posted January 18, 2008 03:43 PM         

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You would think that it would probably be 4 but if you're an unlucky person it would be 6.
So I'm going to guess 6.

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Posts: 432
From: Still out looking for Schrödinger's cat......... fayte1954@hotmail.com LEXIGRAMMING
Registered: Jan 2008

posted January 18, 2008 03:51 PM         

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guaranteed?
12
lucky?
2
Or yeah...just turn on a light.

12 is my final answer.
If you remove 10 and having only 10 of each color...
logic dictates that two more,
ie; 12...
will let you have, for sure,
a matching pair.

So the answer is 12

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Posts: 2528
From: California, USA
Registered: Oct 2006

posted January 18, 2008 04:32 PM         

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Logically; 12 socks is correct as a guarantee

If it were me I too would just go without.

But technically if you are in the dark you don't have to remove any to have a matching pair, they all appear to match. The illusion is everything as long as you remain in the dark, LOL!

Thanks Mirandee

------------------
Sendin' love your way,
"your friend in spirit"

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Posts: 4812
From: South of the Thumb - Taurus, Pisces, Cancer
Registered: Sep 2004

posted January 18, 2008 05:54 PM         

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Will give you a hint:

The riddle asks for only one pair of socks. So how many would you need to make just one pair of socks?

Another hint: Both 12 and 6 are in the ballpark.

LOL @ Star and Moonie - sounds like the easiest way to solve the problem.

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Posts: 11943
From: Pleasanton, CA, USA
Registered: May 2005

posted January 18, 2008 06:09 PM         

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3

Black, Black, Black - Pair of Blacks
Brown, Brown, Brown - Pair of Browns
Black, Brown, Black - Pair of Blacks
Brown, Black, Brown - Pair of Browns

(I didn't need the hint.)

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Posts: 4812
From: South of the Thumb - Taurus, Pisces, Cancer
Registered: Sep 2004

posted January 18, 2008 06:36 PM         

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Correct, AG

The answer is 3.

You would have to get at least two socks that were a color match with 3.

But in the dark how would know which 2 out of the 3 actually matched? LOL

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Posts: 11943
From: Pleasanton, CA, USA
Registered: May 2005

posted January 18, 2008 06:48 PM         

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That's a true riddle right there. I guess you'd have to be able to feel the difference...which would then make your pulling three socks unnecessary.

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Posts: 4812
From: South of the Thumb - Taurus, Pisces, Cancer
Registered: Sep 2004

posted January 18, 2008 06:53 PM         

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Okay this one I think is harder:

Challenge #2

If a man and a half can catch a fish and a half in a day and a half, how many fish will 6 men catch in 7 days?

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Posts: 4812
From: South of the Thumb - Taurus, Pisces, Cancer
Registered: Sep 2004

posted January 18, 2008 06:58 PM         

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Please let me know how you figured out the answer if you get it right. We have been racking our brains on this one. They gave the answer but not how they arrived at it.

Math was never my best subject

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Posts: 3800
From: California
Registered: Oct 2001

posted January 18, 2008 06:59 PM         

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6 fish b/c the ratio is 1:1:1

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Posts: 432
From: Still out looking for Schrödinger's cat......... fayte1954@hotmail.com LEXIGRAMMING
Registered: Jan 2008

posted January 18, 2008 07:11 PM         

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Duh!
My mind was on finding a pair of black socks!
I did not notice that the color of the pair is not specified.
Duh!
One only needs to pick out three socks to be guaranteed of getting a pair of either color!
Duh!

But if looking for a specific color.....
12 is the correct answer!

BTW...
Out of curiosity I tried it in reality.....
and yeah, 3 is the correct answer if a pair of either color is desired.
But 12 stands as the guarantee of getting a specific color.

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Posts: 2528
From: California, USA
Registered: Oct 2006

posted January 18, 2008 07:21 PM         

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1.5 men catch 1.5 fish in 1.5 days
therefore, (1.5 times 4) = 6 men can catch (1.5 times 4) = 6 fish in 1.5 days

Problem:
in 7 days, 6 men can catch
((6 fish divided by 1.5 days) times (7days)) = 28 fish

To double check:
7 divided by 1.5 = 4.667
SOooo 6 times 4.667 = 28

SO THEY WILL CATCH 28 FISHES IN 7 DAYS.

*Unless of course a Fish & wildlife warden is around then, they will catch "The Legal Limit", LOL!

------------------
Sendin' love your way,
"your friend in spirit"

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Posts: 11943
From: Pleasanton, CA, USA
Registered: May 2005

posted January 18, 2008 07:33 PM         

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On the surface, using quick math it looks like 42.

Let me work this out.

I think YFIS may be right. Yup, I'm pretty sure she's right.

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Posts: 432
From: Still out looking for Schrödinger's cat......... fayte1954@hotmail.com LEXIGRAMMING
Registered: Jan 2008

posted January 18, 2008 08:08 PM         

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Man that is a hard one!
Since one cannot have 1/2 a man nor 1/2 a living fish.
So I decided to not think of men, fish and days but just numbers.
Ok....
I see how AG got 42 at first glance.
6 divided by 1.5=4
1.5 x 4 = 6
6x7=42

OK...
6 divided by 1.5=4
So 4 x 7=28.

So YFIS's answer seems right.

28

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Posts: 235
From: sydney, nsw, oz
Registered: Jan 2006

posted January 18, 2008 09:41 PM         

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The sock puzzle was easy.
When you know the answer.LOL.

Is it 24.75 fish?

I'm going out on a limb here because these puzzles are usually not straightforward.

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Posts: 432
From: Still out looking for Schrödinger's cat......... fayte1954@hotmail.com LEXIGRAMMING
Registered: Jan 2008

posted January 18, 2008 10:19 PM         

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1.5 men catch
1.5 fish in
1.5 days

that makes 6 men catch 24 fish in 6 days
for whole numbers of days, fish, and men,
6x4=24.
Add the 7th, day to have the 6 men getting 3.96
more fish for 2/3 of a the 1.5 which 1 day or the 7th. day, = .66 x 6=3.96 fish.
So maybe it is 24 fish for 6 days + 3.96 fish for the 7th. day rounded of to 28.

Or 6 men can catch 24 fish in 6 days so 24 fish divided by 6=4 which gives us 6 fish for 6 days + 4 more fish for 1 day,

which again = 28 fish!

I wonder what the trick is to this one?

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Posts: 235
From: sydney, nsw, oz
Registered: Jan 2006

posted January 18, 2008 10:51 PM         

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Do you count 7 days as 7 full days or do you divide it by 1.5 because it takes 1.5 (36 hrs) to catch 1.5 fish?
The same question goes for the men. Do you count 6 men or only 4 men?

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Posts: 4812
From: South of the Thumb - Taurus, Pisces, Cancer
Registered: Sep 2004

posted January 18, 2008 11:50 PM         

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You guys are math wizards!!!!

The correct answer is 28

And thanks for letting me know how you arrived at that answer.

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Posts: 4812
From: South of the Thumb - Taurus, Pisces, Cancer
Registered: Sep 2004

posted January 18, 2008 11:55 PM         

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Challenge #3

A man transports a fox, a duck, and corn in a boat.

The boat is only capable of transporting the man and one of the other 3 with each crossing.

How did he succeed in crossing them all without letting the fox eat the duck or the duck eat the corn?

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