Question 1168187
You can arrange the tops 6 different ways (3*2*1), the hoodies 2 different ways (2*1), and the jeans 24 different ways (4*3*2*1).  This means you can arrange the clothes 288 different ways (6*2*24).
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Furthermore, you can arrange the sets of the clothes 6 different ways in the closet:
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TOPS - HOODIES - JEANS
TOPS - JEANS - HOODIES
HOODIES - TOPS - JEANS
HOODIES - JEANS - TOPS
JEANS - TOPS - HOODIES
JEANS - HOODIES - TOPS
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This means there are a grand total of 1728 ways (288*6) you can arrange the clothes in the closet.