AMC 8 1985 Problem 18
AMC8 1985 年第 18 题
特殊数与不定方程★★★☆☆
Nine copies of a certain pamphlet cost less than $ 10.00 while ten copies of the same pamphlet (at the same price) cost more than $ 11.00. How much does one copy of this pamphlet cost?
某种小册子九份的价钱低于 $10.00，而同一小册子十份的价钱（相同单价）高于 $11.00。该小册子一份多少钱？
- A.}$ $$1.07$ $\text{(B)}$ $$1.08$ $\text{(C)}$ $$1.09$ $\text{(D)}$ $$1.10$ $\text{(E)}$ $$1.11$
正确答案 · Correct Answer
E
解析 · Solution
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