GRE考满分·题库

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题目内容
Three factory employees work at constant rates to produce DVDs. Employee A produces y DVDs in $$\frac{2}{5}$$ of an hour. Employee B produces y DVDs in $$\frac{3}{5}$$of an hour. Employee C produces y DVDs in $$\frac{5}{4}$$ of an hour. Which of the following combinations of employees can produce at least 5y DVDs in 2 hours? Indicate all such statements.
In Year Y, the population of Massachusetts was approximately what percent of the population of Vermont?
By approximately how much did the population of Rhode Island increase from Year X to Year Y ?
Approximately what is the difference between the percent change of Connecticut`s percent of total New England population from Year X to Year Y and the percent change of Massachusetts percent of total New England population from Year X to Year Y ?
If the number of students in grades 9 through 12 comprised 35 percent of the number of students in School District X in 1975, then approximately how many students were in School District X in 1975 ?
Assume that all students in School District X took the reading test each year. In 1993, approximately how many more ninth grade students had reading test scores in the 70–79 point range than in the 80–89 point range?

Quantity A

$$2-\frac{27}{25}$$

Quantity B

$$\frac{3}{5}+\frac{12}{125}$$

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