This is a question in discrete math and requires us to find the actual number of ways for these scenarios. 3. Seven numbered red balls and three indistinguishable blue balls are to be placed in five labelled boxes. (a) What is the number of placements with the condition that each box contains at least one red ball? (b) What is the number of placements where each box contains at most one blue ball and none of the boxes are left empty?

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Q: 3. Seven numbered red balls and three indistinguishable blue balls are to be placed in five labelled…

A: Given:Seven numbered red balls and threeindistinguishable blue balls are to beplace in five labelled…