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  3. For each of Questions 1 to 9, compare Quantity A and Quantity B, using additiona

For each of Questions 1 to 9, compare Quantity A and Quantity B, using additiona

游客2025-02-24  48
问题 For each of Questions 1 to 9, compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given. Select one of the following four answer choices and fill in the corresponding oval to the right of the question.
(A)Quantity A is greater.
(B)Quantity B is greater.
(C)The two quantities are equal.
(D)The relationship cannot be determined from the information given.
A symbol that appears more than once in a question has the same meaning throughout the question.
[br]
选项
答案 C
解析 In this question you are asked to compare two measurements, one given in kilometers and the other in meters. It would be easier to compare these measurements if they were both given in meters or both given in kilometers.
    If you choose to convert the distance that Runner B ran from meters to kilometers, you need to use the conversion 1 meter is equal to 1/1,000 kilometer. Since B ran 800 meters, it follows that B ran(800)(1/1,000). or 4/5 kilometer, which is the same distance that A ran.
    If you choose to convert the distance that Runner A ran from kilometers to eters, you need to use the conversion 1 kilometer is equal to 1,000 meters. Since A ran 4/5 kilometer, it follows that A ran(4/5)(1,000), or 800 meters, which is he same distance that B ran. Either way, A and B ran the same distance, and the correct answer is Choice C.
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