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题目： A cake recipe uses a constant ratio of 2 teaspoons vanilla extract to 1 ounce chocolate. If the original recipe, which serves four people, is altered proportionally to yield a cake that serves six people, how many ounces of chocolate will be used in the larger cake?(1) The original recipe calls for exactly five teaspoons of vanilla extract.(2) If the original recipe were altered proportionally to yield a cake that serves eight people, ten teaspoons of vanilla extract would be used.

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题目： If a kennel houses only cats and dogs, what percent of the animals in the kennel are dogs? (1) The ratio of cats to dogs in the kennel is 2:3. (2) The ratio of dogs to the total number of animals is 3:5.

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题目： Is Hector taller than Charley?(1) Hector is 5 feet 7 inches tall.(2) When Hector stands on a 3-inch thick book, he is one inch taller than Charley.

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题目： In Greenville last July, what was the average (arithmetic mean) home sale price?(1) In Greenville last July, there were 100 homes sold for a total of $51 million.(2) In Greenville last July, condominiums accounted for 60% of the home sales, and the average condominium price was $450,000.

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题目： If 3x – 3y = 12z, what is the value of x?(1) 4z = 2 + y(2) 4z = 6 – y

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题目： If x and y each represent a single digit, does the number 8.3xy round to 8.3 when it is rounded to the nearest tenth?(1) x = 5 (2) y = 9

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题目： If Sarah was 21 years old exactly 5 years ago, how old was Larry exactly 9 years ago? (1) Larry is now twice Sarah's age. (2) Twelve years ago, Jill was 6 years older than Sarah and 20 years younger than Larry.

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题目： If x and y are integers, is 5x + y divisible by 5?(1) x is divisible by 5.(2) y is divisible by 5.

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题目： If$$ xy \neq 0$$, what is the ratio of y to x?(1) y = 3x(2) x = 11

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题目： If Bob, working alone, can paint a certain room in 3 hours, how long does it take Bob and Richard working together to paint the room? (1) Richard, working alone, can paint the room in 2 hours.(2) Richard paints at a constant rate that is 50% greater than the rate at which Bob paints.

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题目： If z is an integer, is z even?(1) $$\frac{z}{2}$$ is even.(2) 3z is even.

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题目： What is the value of y? (1) 2 x + 2 y = 14 (2) 2 y + 2 z = 14

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题目： At what point does the line ax + y + b = 0 intersect the y-axis?(1) b = 5(2) a = 3

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题目： At a certain school, 100 students are in the marching band. If 40% of the students in the orchestra are also in the marching band, how many students are members of neither the orchestra nor the marching band? (1) There are 1000 students in the school. (2) 50 students are in the orchestra.

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题目： The contents of one full cylindrical silo are to be transferred to another, larger cylindrical silo. The contents of the smaller silo will fill what portion of the larger silo? (1) The larger silo has twice the base radius, and twice the height, of the smaller one. (2) The smaller silo has a circular base with a radius of 10 feet.