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.
Source: Princeton Review
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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Statement 1 itself is sufficient. Number of diners who had tea = 10% of 60 = 6. Statement 2 is insufficient as we have no information about the number of diners who had tea.
Correct answer: A
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