题库 | 考满分，百万出国党的口碑之选。

序号	题目内容
291	The weights of all dishes of type X are exactly the same, and the weights of all dishes of type Y are exactly the same. Is the weight of 1 dish of type X less than the weight of 1 dish of type Y ?(1)The total weight of 3 dishes of type X and 2 dishes of type Y is less than the total weight of 2 dishes of type X and 4 dishes of type Y.(2)The total weight of 4 dishes of type X and 3 dishes of type Y is less than the total weight of 3 dishes of type X and 4 dishes of type Y.
292	If r and t are three-digit positive integers, is r greater than t?(1) The tens digit of r is greater than each of the three digits of t.(2) The tens digit of r is less than either of the other two digits of r.
293	Is the product of two positive integers x and y divisible by the sum of x and y?(1) x=y(2) x=2
294	A certain high school with a total enrollment of 900 students held a science fair for three days last week. How many of the students enrolled in the high school attended the science fair on all three days?(1) Of the students enrolled in the school, 30 percent attended the science fair on two or more days.(2) Of the students enrolled in the school, 10 percent of those that attended the science fair on at least one day attended on all three days.
295	The average (arithmetic mean) price of the 3 items that Kate purchased from a clothing store was $50. If there was no sales tax on any item that had a price of less than $80 and 6 percent sales tax on all other items, what was the total sales tax on the 3 items that Kate purchased?(1) The price of the most expensive item that Kate purchased from the store was $100.(2) The price of the least expensive item that Kate purchased from the store was $10.
296	A company makes and sells two products, P and Q. The costs per unit of making and selling P and Q are $8.00 and $9.50, respectively, and the selling prices per unit of P and Q are $10.00 and $13.00, respectively. In one month the company sold a total of 834 units of these products. Was the total profit on these items more than $2,000.00?(1) During the month, more units of P than units of Q were sold.(2) During the month, at least 100 units of Q were sold.
297	Jill has applied for a job with each of two different companies. What is the probability that she will get job offers from both companies?(1) The probability that she will get a job offer from neither company is 0.3.(2) The probability that she will get a job offer from exactly one of the two companies is 0.5.
298	A scientist recorded the number of eggs in each of 10 birds' nests. What was the standard deviation of the numbers of eggs in the 10 nests?(1)The average (arithmetic mean) number of eggs for the 10 nests was 4.(2)Each of the 10 nests contained the same number of eggs.
299	A conveyor belt moves bottles at a constant speed of 120 centimeters per second. If the conveyor belt moves a bottle from a loading dock to an unloading dock, is the distance that the conveyor belt moves the bottle less than 90 meters? (1 meter = 100 centimeters)(1) It takes the conveyor belt less than 1.2 minutes to move the bottle from the loading dock to the unloading dock.(2) It takes the conveyor belt more than 1.1 minutes to move the bottle from the loading dock to the unloading dock.
300	If x, y, and z are positive numbers, what is the value of the average (arithmetic mean) of x and z?(1) x-y=y-z(2) $$x^{2}-y^{2}=z$$
301	The rectangular rug shown in the figure above has an accent border. What is the area of the portion of the rug that excludes the border?(1) The perimeter of the rug is 44 feet.(2) The width of the border on all sides is 1 foot
302	Terry holds 12 cards, each of which is red, white, green, or blue. if a person is to select a card randomly from the cards Terry is holding, is the probability less than 1/2 that the card selected will be either red or white?(1) The probability that the person will select a blue card is 1/3.(2) The probability that the person will select a red card is 1/6.
303	If $$y \neq 2xz$$, what is the value of $$\frac{2xz+yz}{2xz-y}$$?(1) 2x + y = 3(2) z = 2
304	In the parallelogram shown, what is the value of x?(1)y = 2x(2)x + z = 120
305	In a product test of a common cold remedy, x percent of the patients tested experienced side effects from the use of the drug and y percent experienced relief of cold symptoms. What percent of the patients tested experienced both side eddects and relief of cold symptoms?(1) Of the 1,000 patients tested, 15 percent experienced neither side effects nor relief of cold symptoms.(2) Of the patients tested, 30 percent experienced relief of cold symptoms without side effects.
306	Is x<5?(1) $$x^{2}$$>5 (2)$$ x^{2}+x<5$$
307	Is $${4}^{x+y}={8}^{10}$$ ?(1) x-y= 9(2) $$\frac{y}{x}=\frac{1}{4}$$
308	Is zp negative?(1) $${p}{z}^{4}< 0$$(2) $$p + {z}^{4} = 14$$
309	In each game of a certain tournament, a contestant either loses 3 points or gains 2 points. If Pat had 100 points at the beginning of the tournament, how many games did Pat play in the tournament?(1) At the end of the tournament, Pat had 104 points.(2) Pat played fewer than 10 games.
310	At the beginning of the year, the Finance Committee and the Planning Committee of a certain company each had n members, and no one was a member of both committees. At the end of the year, 5 members left the Finance Committee and 3 members left the Planning Committee. How many members did the Finance Committee have at the beginning of the year? (1) The ratio of the total number of members who left at the end of the year to the total number of members at the beginning of the year was 1:6.(2) At the end of the year, 21 members remained on the Planning Committee.

序号

题目内容

291

The weights of all dishes of type X are exactly the same, and the weights of all dishes of type Y are exactly the same. Is the weight of 1 dish of type X less than the weight of 1 dish of type Y ?(1)The total weight of 3 dishes of type X and 2 dishes of type Y is less than the total weight of 2 dishes of type X and 4 dishes of type Y.(2)The total weight of 4 dishes of type X and 3 dishes of type Y is less than the total weight of 3 dishes of type X and 4 dishes of type Y.

292

If r and t are three-digit positive integers, is r greater than t?(1) The tens digit of r is greater than each of the three digits of t.(2) The tens digit of r is less than either of the other two digits of r.

293

Is the product of two positive integers x and y divisible by the sum of x and y?(1) x=y(2) x=2

294

A certain high school with a total enrollment of 900 students held a science fair for three days last week. How many of the students enrolled in the high school attended the science fair on all three days?(1) Of the students enrolled in the school, 30 percent attended the science fair on two or more days.(2) Of the students enrolled in the school, 10 percent of those that attended the science fair on at least one day attended on all three days.

295

The average (arithmetic mean) price of the 3 items that Kate purchased from a clothing store was $50. If there was no sales tax on any item that had a price of less than $80 and 6 percent sales tax on all other items, what was the total sales tax on the 3 items that Kate purchased?(1) The price of the most expensive item that Kate purchased from the store was $100.(2) The price of the least expensive item that Kate purchased from the store was $10.