10.
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.
答案为C
谢谢
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