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Can someone please explain how to get the answer for this discrete math problem Hillary, Aly,...

Can someone please explain how to get the answer for this discrete math problem

Hillary, Aly, and Meredith are sitting in their favorite coffee shop when their waiter asks: "Does everyone want coffee?" Hillary replies "I don't know." Aly then replies "I don't know" as well. Finally, Meredith says "Not everyone wants coffee." The waiter comes back and gives a coffee to each person that wants one.

Answer the following:

Did Hillary get a coffee?

1) yes 2) no or 3) can't tell

Did Aly get a coffee?

1) yes 2) no or 3) can't tell

Did Meredith get a coffee?

1) yes 2) no or 3) can't tell

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