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Weekly Problem 39 - 2006

Stage: 2 and 3 Challenge Level: Challenge Level:2 Challenge Level:2
4

If Dilly brings two green gloves then they will not necessarily be a matching pair (since they could both be left-hand gloves or both be right-hand gloves). Similarly, two blue gloves could both be right-hand gloves. In the same way, three blue (or green) gloves could all be right-handed. However, if Dilly brings all four blue gloves then these will include a matching pair.

This problem is taken from the UKMT Mathematical Challenges.

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