Question: Exercise 9: A store has 30 Desktops, 14 Laptops, 6 Printers and 15 USBs. If you buy 7 products. (a) How many ways can you

 Exercise 9: A store has 30 Desktops, 14 Laptops, 6 Printers

Exercise 9: A store has 30 Desktops, 14 Laptops, 6 Printers and 15 USBs. If you buy 7 products. (a) How many ways can you select exactly 2 Desktops and exactly 4 Laptops? (b) How many ways can you select exactly 4 Printers or exactly 3 USBs

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