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题目： What is the value of $$x^{2} - y^{2}$$ ? (1 ) $$(x-y)^{2} = 9$$ (2) $$x+ y=6$$

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题目： For each landscaping job that takes more than 4 hours, a certain contractor charges a total of r dollars for the first 4 hours plus 0.2r dollars for each additional hour or fraction of an hour, where r > 100. Did a particular landscaping job take more than 10 hours? (1) The contractor charged a total of $288 for the job. (2) The contractor charged a total of 2.4r dollars for the job.

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题目： If $$x^{2} = 2^{x}$$, what is the value of x? (1) $$2x= (\frac{x}{2})^{3}$$ (2) $$x = 2^{x-2}$$

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题目： In the sequence S of numbers, each term after the first two terms is the sum of the two immediately preceding terms. What is the 5th term of S? (1) The 6th term of S minus the 4th term equals 5. (2) The 6th term of S plus the 7th term equals 21.

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题目： If 75 percent of the guests at a certain banquet ordered dessert, what percent of the guests ordered coffee? (1) 60 percent of the guests who ordered dessert also ordered coffee. (2) 90 percent of the guests who ordered coffee also ordered dessert.

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题目： A tank containing water started to leak. Did the tank contain more than 30 gallons of water when it started to leak? (Note: 1 gallon = 128 ounces) (1) The water leaked from the tank at a constant rate of 6.4 ounces per minute. (2) The tank became empty less than 12 hours after it started to leak.

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题目： Each of the 45 books on a shelf is written either in English or in Spanish, and each of the books is either a hardcover book or a paperback. If a book is to be selected at random from the books on the shelf, is the probability less than $$\frac{1}{2}$$ that the book selected will be a paperback written in Spanish? (1) Of the books on the shelf, 30 are paperbacks. (2) Of the books on the shelf, 15 are written in Spanish.

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题目： A small school has three foreign language classes, one in French, one in Spanish, and one in German. How many of the 34 students enrolled in the Spanish class are also enrolled in the French class? (1) There are 27 students enrolled in the French class, and 49 students enrolled in either the French class, the Spanish class, or both of these classes. (2) One-half of the students enrolled in the Spanish class are enrolled in more than one foreign language class.

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题目： If S is a set of four numbers w, x, y, and z, is the range of the numbers in S greater than 2 ? (1) $$w-z>2$$ (2) z is the least number in S.

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题目： Last year $$\frac{3}{5}$$ of the members of a certain club were males. This year the members of the club include all the members from last year plus some new members. Is the fraction of the members of the club who are males greater this year than last year? (1) More than half of the new members are male. (2) The number of members of the club this year is $$\frac{6}{5}$$ the number of members last year.

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题目： If a, b, and c are consecutive integers and 0 (1) The product ac is even. (2) The product be is a multiple of 4.

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题目： M and N are integers such that 6 (1) The greatest common divisor of M and N is 6. (2) The least common multiple of M and N is 36.

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题目： Stations X and Y are connected by two separate, straight, parallel rail lines that are 250 miles long. Train P and train Q simultaneously left Station X and Station Y, respectively, and each train traveled to the other's point of departure. The two trains passed each other after traveling for 2 hours. When the two trains passed, which train was nearer to its destination? (1) At the time when the two trains passed, train P had averaged a speed of 70 miles per hour. (2) Train Q averaged a speed of 55 miles per hour for the entire trip.

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题目： If a, b, c, and dare numbers on the number line shown and if the tick marks are equally spaced, what is the value of a + c ? (1) $$a+b=-8$$ (2) $$a+ d= 0$$

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题目： If $$y = x^{2} - 6x + 9$$, what is the value of x? (1) $$y= 0$$ (2) $$x + y= 3$$