PQOTD 8/5/09

Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones. What is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each color?   (a) 4   (b) 8   (c) 12   (d) 13   (e) [...]