2. 外语
  3. A rancher wishes to enclose a field that measures 12 feet by 27 feet. He purchases 76 feet of fencing material that must be affi

A rancher wishes to enclose a field that measures 12 feet by 27 feet. He purchases 76 feet of fencing material that must be affi

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问题 A rancher wishes to enclose a field that measures 12 feet by 27 feet. He purchases 76 feet of fencing material that must be affixed to posts at the corners, with no two posts being more than 6 feet apart. What is the least number of fence posts he will require to fence in this field?
选项 A、10
B、12
C、13
D、14
E、18
答案D
解析
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