来源：

题目： Although Ackerburg's subway system is currently operating at a deficit, the transit authority will lower subway fares next year. The authority projects that the lower fares will result in a ten percent increase 128 in the number of subway riders. Since the additional income from the larger ridership will more than offset the decrease due to lower fares, the transit authority actually expects the fare reduction to reduce or eliminate the subway system's operating deficit for next year. Which of the following, if true, provides the most support for the transit authority's expectation of reducing the subway system's operating deficit?

来源：

题目： PhishCo runs a number of farms in the arid province of Nufa, depending largely on irrigation. Now, as part of a plan to efficiently increase the farms' total production, it plans to drill down to an aquifer containing warm, slightly salty water that will be used to raise fish in ponds. The water from the ponds will later be used to supplement piped-in irrigation water for PhishCo's vegetable fields, and the ponds and accompanying vegetation should help reduce the heat in the area of the farms. Which of the following would, if true, most strongly suggest that the plan, if implemented, would increase the overall efficiency of PhishCo's farms?

来源：

题目： Arts advocate: Few universities require that students who are specializing in science and technology take many art courses. However, real progress in science and technology requires an element of creativity, which the arts foster.Thus,to help science and technology students succeed in their careers, universities should increase the number of art courses required for them. Which of the following would, if true, most strengthen the argument above?

来源：

题目： If a and bare positive integers, is $$\sqrt[3]{ab}$$ an integer? (1) $$\sqrt{a}$$ is an integer. (2) b= $$\sqrt{a}$$

来源：

题目： If r and s are positive integers, is r + s even? 1.r is even. 2.s is even.

来源：

题目： In the figure above, ∆PQR has angle measures as shown. Is x 1.PQ = QR 2.PR > QR

来源：

题目： If S is a set of odd integers and 3 and –1 are in S, is –15 in S ? 1.5 is in S. 2.Whenever two numbers are in S, their product is in S.

来源：

题目： If the 1st term of a sequence is 0 and the 2nd term is 1, is the 5th term 2 ? 1.Each odd-numbered term is either 0 or 2. 2.The 3rd term is 2.

来源：

题目： Is the sum of four particular integers even? 1.Two of the integers are odd and two are even. 2.The average (arithmetic mean) of the four integers is an integer.

来源：

题目： If a school district paid a total of $35 per desk for x desks and a total of $30 per table for y tables, what was the total amount that the district paid for these desks and tables? 1.The total amount the district paid for the y tables was $900. 2.x = 90, and the total amount the district paid for the x desks was 3.5 times the total amount the district paid for the y tables.

来源：

题目： Three children inherited a total of X dollars. If the oldest child inherited $7,000 more than the youngest child, and the youngest child inherited $9,000 less than the middle child, what is the value of X ? 1.The middle child inherited $27,000. 2.The youngest child and the middle child together inherited a total of $45,000.

来源：

题目： If xyz ≠ 0, what is the value of $$\frac{x^{4}z^{2}}{z^{2}y^{2}}$$ 1.$$y^{2}=x^{4}$$ 2.$$x = 2$$ and $$y = 4$$

来源：

题目： If a and b are integers, and b > 0, does $$\frac{a-1}{b+1}=\frac{a}{b}$$ 1.$$a = b – 4$$ 2.$$a = –b$$

来源：

题目： In a sequence of numbers in which each term is 2 more than the preceding term, what is the fourth term? 1.The last term is 90. 2.The first term is 2.

来源：

题目： Is the integer p divisible by 5 ? 1.p is divisible by 10. 2.p is not divisible by 15.