GMAT Data Sufficiency
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Source: Princeton
Level: 3
A library bought b books for its collection. What was the total amount of money required to buy the b books?
(1)b = 40
(2) Each of the books cost the library at least $12.50
- A Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
- B Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
- C BOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
- D EACH statement ALONE is sufficient.
- E Statements (1) and (2) TOGETHER are NOT sufficient.