Juan bought some paperback books that cost $8 each and some hardcover books that cost $25 each. If Juan bought more than 10 paperback books, how many hardcover books did he buy?
(1) The total cost of the hardcover books that Juan bought was at least $150.
(2) The total cost of all the books that Juan bought was less than $260.
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 statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.
1)Juan买的硬皮书的价格至少150美元
2)Juan总购书价格小于260美元。
根据题干,Juan买的软皮书的价格至少8*10=80美元,则根据2),Juan购买软皮书的价格将少于260-80=180美元。结合1)则购书价格或者为150美元,或者为175美元,即6本或者7本。因为不能确定确切数量,因此1)和2)都不成立。
自己醒悟啦 很好哦
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