Single-colored

Diana is going to a party. She can't decide what to wear. She has 4 T-shirts (white, blue, pink, and purple) and 5 skirts (black, white, pink, green, and brown) to choose from. In how many different ways can she combine the T-shirt and skirt if she doesn't want to be single-colored and if she doesn't think blue and green go well together?

Correct answer:

n =  17

Step-by-step explanation:

n=4 51 11 11 1=17



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