[Guest]

Check this one out:

Jenny has six pairs of black gloves and six pairs of brown gloves in her drawer. In complete darkness, how many gloves must she take from the drawer in order to be sure to get a pair that match?

[TwoaDay]

13

Edited February 9, 2009 by TwoaDay

[Guest]

one is 3

[Guest]

3 times.

[Guest]

13

<if each pairs of gloves can only be matched with its one pair but

3

if all black gloves are the same and all brown gloves are the same.

[Guest]

Actually if the pairs of gloves are identical the answer

5 gloves not 3. Even if the pairs are identical you still must consider the left and right hands will always be different.

[Guest]

Actually if the pairs of gloves are identical the answer

5 gloves not 3. Even if the pairs are identical you still must consider the left and right hands will always be different.

If left and right gloves are required, then you could pull out as many as 12 left-handed gloves and still not have a match... so, you'd need 13.

I think the answer 3 assumes you can turn any glove inside-out like a doctor's latex glove. That way, a glove could serve as either right or left.

[Guest]

3 gloves if they are interchangeable-ie left or right is same, otherwise 13 gloves. [by simple pigeon hole principal]

[Prime]

She must take 8 gloves.

Left and right gloves are different and she does not need light to tell which is which. So if she takes 7 right gloves and one left, she can be sure there is a color match for the left glove.

[Guest]

[spoiler='the answer is

'](you can feel in the dark right handed glove from left) so the answer is 8: 7 left handed gloves because you need at least one frome either color (possible to take 6 of one color, 1 of another) and one right hand glove. the color doesnt matter on the right hand, since it will match at least one from the left.