1) If people's eyes are classified as blue, green, brown, or gray, what is the minimum size of a group of people to guarantee that at least four people have the same eye color?
2) How many 10 digit numbers start with 1, and have three 2s, two 4s, and four 6s?
3) If people's eyes are classified as blue, green, brown, or gray, what is the minimum size of a group of people to guarantee that at least four people have the same eye color?
2) How many 10 digit numbers start with 1, and have three 2s, two 4s, and four 6s?
3) If people's eyes are classified as blue, green, brown, or gray, what is the minimum size of a group of people to guarantee that at least four people have the same eye color?
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