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  3. A speed of 30 miles per hour is equivalent to a speed of 44 feet per second. A speed of 33 feet per second is equivalent to a sp

A speed of 30 miles per hour is equivalent to a speed of 44 feet per second. A speed of 33 feet per second is equivalent to a sp

admin2009-05-19  57
问题 A speed of 30 miles per hour is equivalent to a speed of 44 feet per second. A speed of 33 feet per second is equivalent to a speed of x miles per hour.

Column A                  Column B
X                         22.5
选项 A、if the quantity in Column A is greater
B、if the quantity in Column B is greater
C、if the two quantity are equal
D、if the relationship cannot be determined from the information given
答案C
解析 每小时30英里的速度与每秒44英尺的速度相等，每秒33英尺的速度与每小时x英里速度相等。
解：本题的正确答案为(C)。根据题干中给出的速度的不同单位之间的等价关系，考生可以直接列出下面的方程：30/44 = 3/33 → x=22.5
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本试题收录于： GRE QUANTITATIVE题库GRE分类
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