Pairs of Gloves
In dark, how many gloves you must take from a drawer with 6 pair of black & 6 pair of white gloves, in order to be sure to get a pair that match?
Labels: logic, mathemagic, out-of-the-box
posted by Rajesh Lal at
9:46 PM
8 Comments:
13 methinks
Answer: 13
3
It cannot be three because
In the worst case, you can take 6 black and 6 white gloves of the same hand.
so on the 13th glove, you can be sure that you have a pair
3...it doesn't say that you have to wear the gloves, only that they will match (color).
i kno this is a late post but i have to agree with anonymous above, there are 2 colors, so even if he first one is one color, and the second one is the other....the third one will 100% be one of those two colors. making one pair.
oh and in the 6 pairs of 2 colored gloves = 24 gloves...not 12 like u were thinking
1 pair =2 gloves
the question didn't specify what the ambiguous "match" means. match can be of color or that they need to fit in both hands.
if it is of color, the answer is 3
if they need to be left and right of the same colors, it is 13.
it cant be 13 if there is only twelve gloves 6w 6b and the answer is three b/c they just want a match if you grab one you dont have a pair if you have two you might or might not have a pair and the third glove will always match one of the gloves to one of the other two
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