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The attendees at a certain convention purchased a total of 15,000 books. How many of these attendees were female?
(1) There was a total of 4,000 attendees at the convention.
(2) The male attendees purchased an average (arithmetic mean) of 3 books each, and the female attendees purchased an average of 5 books each.
Answer: C
Source: GMAT Prep
(1) There was a total of 4,000 attendees at the convention.
(2) The male attendees purchased an average (arithmetic mean) of 3 books each, and the female attendees purchased an average of 5 books each.
Answer: C
Source: GMAT Prep
