题库 | 考满分，百万出国党的口碑之选。

序号	题目内容
21	If the average (arithmetic mean) of the four numbers 3, 15, 32, and (N + 1) is 18, then N =
22	Abdul, Barb, and Carlos all live on the same straight road, on which their school is also located. The school is halfway between Abdul`s house and Barb`s house. Barb`s house is halfway between the school and Carlos`s house. If the school is 4 miles from Carlos`s house, how many miles is Abdul`s house from Carlos`s house?
23	During a certain time period, Car X traveled north along a straight road at a constant rate of 1 mile per minute and used fuel at a constant rate of 5 gallons every 2 hours. During this time period, if Car X used exactly 3.75 gallons of fuel, how many miles did Car X travel?
24	Cheryl purchased 5 identical hollow pine doors and 6 identical solid oak doors for the house she is building. The regular price of each solid oak door was twice the regular price of each hollow pine door. However, Cheryl was given a discount of 25% off the regular price of each solid oak door. If the regular price of each hollow pine door was $40, what was the total price of all 11 doors?
25	If $$\mid{y}-\frac{1}{2}\mid<\frac{11}{2}$$ which of the following could be a value of y?
26	In the figure shown, AC = 2 and BD=DC=1. What is the measure of angle ABD?
27	If $$ k^2 = m^2,$$ which of the following must be true?
28	Makoto, Mishi, and Ozuro were paid a total of $780 for waxing the floors at their school. Each was paid in proportion to the number of hours he or she worked. If Makoto worked 15 hours, Mishi worked 20 hours, and Ozuro worked 30 hours, how much was Makoto paid?
29	The figure above shows a path around a triangular piece of land. Mary walked the distance of 8 miles from P to Q and then walked the distance of 6 miles from Q to R. If Ted walked directly from P to R, by what percent did the distance that Mary walked exceed the distance that Ted walked?
30	At a supermarket John spent $$\frac{1}{2}$$ of his money on fresh fruits and vegetables,$$\frac{1}{3}$$ on meat products, and $$\frac{1}{10}$$ on bakery products. If he spent the remaining $6 on candy, how much did John spend at the supermarket?
31	If (1 – 1.25)N = 1, then N =
32	A carpenter constructed a rectangular sandbox with a capacity of 10 cubic feet. If the carpenter were to make a similar sandbox twice as long, twice as wide, and twice as high as the first sandbox, what would be the capacity, in cubic feet, of the second sandbox?
33	The quotient when a certain number is divide by $$\frac{2}{3} is \frac{9}{2}$$. What is the number?
34	If a sphere with radius r is inscribed in a cube with edges of length e, which of the following expresses the relationship between r and e ?
35	If 2x + y = 7 and x + 2y = 5, then $$\frac{x+y}{3}=$$
36	City X has a population 4 times as great as the population of City Y, which has population twice as great as the population of City Z. What is the ratio of the population of City X to the population of City Z?
37	The graph above shows the height of the tide, in feet, above or below a baseline. Which of the following is closest to the difference, in feet, between the heights of the highest and lowest tides on July 13 at Bay Cove?
38	A manufacturer of a certain product can expect that between 0.3 percent and 0.5 percent of the units manufactured will be defective. If the retail price is $2,500 per unit and the manufacturer offers a full refund for defective units, how much money can the manufacturer expect to need to cover the refunds on 20,000 units?
39	A flat patio was built alongside a house as shown in the figure above. If all angles are right angles, what is the area of the patio in square feet?
40	The sum of the weekly salaries of 5 employees is $3,250. If each of the 5 salaries is to increase by 10 percent, then the average (arithmetic mean) weekly salary per employee will increase by

序号

题目内容

If the average (arithmetic mean) of the four numbers 3, 15, 32, and (N + 1) is 18, then N =

Abdul, Barb, and Carlos all live on the same straight road, on which their school is also located. The school is halfway between Abdul`s house and Barb`s house. Barb`s house is halfway between the school and Carlos`s house. If the school is 4 miles from Carlos`s house, how many miles is Abdul`s house from Carlos`s house?

During a certain time period, Car X traveled north along a straight road at a constant rate of 1 mile per minute and used fuel at a constant rate of 5 gallons every 2 hours. During this time period, if Car X used exactly 3.75 gallons of fuel, how many miles did Car X travel?

Cheryl purchased 5 identical hollow pine doors and 6 identical solid oak doors for the house she is building. The regular price of each solid oak door was twice the regular price of each hollow pine door. However, Cheryl was given a discount of 25% off the regular price of each solid oak door. If the regular price of each hollow pine door was $40, what was the total price of all 11 doors?

If $$\mid{y}-\frac{1}{2}\mid<\frac{11}{2}$$ which of the following could be a value of y?