2. 外语
  3. If the range of the six measurements 140, 125, 180, 110, 165, and x is 80, which of the following could be the value of x?

If the range of the six measurements 140, 125, 180, 110, 165, and x is 80, which of the following could be the value of x?

admin2009-05-19  69
问题 If the range of the six measurements 140, 125, 180, 110, 165, and x is 80, which of the following could be the value of x?
选项 A、60
B、85
C、190
D、220
E、245
答案C
解析 若6个数140，125，180，110，165和x的范围是80，那么x可能是下面的哪一个数值?
解：本题的正确答案为(C)。6个数的范围实际上就是这六个数中最大数与最小数的差。题目中已知的5个数的取值范围显然小于80，所以x值可以是6个数中最大数或最小数：若x是最大数，则x=110+80=190；若x是最小数，则x=180-80=100
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