2. 外语
  3. A given street median is planted with trees. Of the 30 trees in the median, 3 are lindens, one-fifth are oaks, 12 are cedars, an

A given street median is planted with trees. Of the 30 trees in the median, 3 are lindens, one-fifth are oaks, 12 are cedars, an

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问题 A given street median is planted with trees. Of the 30 trees in the median, 3 are lindens, one-fifth are oaks, 12 are cedars, and the remainder are maples. What is the ratio of lindens to maples?
选项 A、1 to 10
B、1 to 4
C、1 to 3
D、1 to 2
E、3 to 1
答案C
解析
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