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  3. Each of Questions 1 to 7 presents two quantities. Quantity A and Quantity B. Com

Each of Questions 1 to 7 presents two quantities. Quantity A and Quantity B. Com

游客2024-01-12  63
问题 Each of Questions 1 to 7 presents two quantities. Quantity A and Quantity B. Compare the two quantities. You may use additional information centered above the quantities if such information is given. Choose one of the following answer choices:
A if Quantity A is greater;
B if Quantity B is greater;
C if the two quantities are equal;
D if you cannot determine the relationship based on the given information.
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选项 A、 
B、 
C、 
D、 
答案 B
解析 The correct answer is B. To solve this problem, compute the averages of both lists of numbers. For Quantity A, the average of 11, 13, and 15 is , or 39/3, which equals 13. For Quantity B, the average of 12,14, and 16 is, or 42/3 which equals 14. Therefore, Quantity B is greater than Quantity A.
    Another way to solve this problem is to note that all of the numbers in Quantity B are greater than those in Quantity A. Therefore, the average of Quantity B will be greater than the average of Quantity A.
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