SOLUTION: There are 5 blue chairs and 4 pink chairs in a class. All blue chair occupied by 5 boys and all pink chairs were occupied by 4 girls before lunch. After lunch they came back in the
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Question 902575: There are 5 blue chairs and 4 pink chairs in a class. All blue chair occupied by 5 boys and all pink chairs were occupied by 4 girls before lunch. After lunch they came back in the class 4 girls sit in all pink chairs but non of them sit on the same seat before lunch? How many ways are there to occupy there seats in the class? Answer by ewatrrr(24785) (Show Source):