Question

A jar contains 5 chocolate chip, 10 oatmeal, and 6 peanut butter cookies. How many ways...

A jar contains 5 chocolate chip, 10 oatmeal, and 6 peanut butter cookies. How many ways can 3 cookies be selected such that at least one is chocolate? (Find two methods to do this problem. Note that the methods must be significantly different from each other, but should yield the same numerical answer.)

Method 1)

Method 2)

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Answer #1

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