At a business dinner, people were offered coffee or tea. If all the diners had either coffee or tea, how many of the

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At a business dinner, people were offered coffee or tea. If all the diners had either coffee or tea, how many of the diners had tea?

(1) Of the \(60\) people at the dinner, \(10\%\) had tea.
(2) Fifty-four people had coffee.

Answer: A

Source: Princeton Review