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OG17 OG18 OG19 OG20 OG2022	In cross section, a tunnel that carries one lane of one-way traffic is a semicircle with radius 4.2 m. Is the tunnel large enough to accommodate the truck that is approaching the entrance to the tunnel?(1) The maximum width of the truck is 2.4 m.(2) The maximum height of the truck is 4 m.
OG18 OG19 OG20 OG2022	Of a group of 50 households, how many have at least one cat or at least one dog, but not both? (1) The number of households that have at least one cat and at least one dog is 4. (2) The number of households that have no cats and no dogs is 14.
OG20 OG2022	7, 9, 6, 4, 5, x If x is a number in the list above, what is the median of the list? 1.x > 7 2.The median of the list equals the arithmetic mean of the list.
OG15 OG16 OG17 OG18 OG19 OG20 OG2022	What is the number of cans that can be packed in a certain carton?(1) The interior volume of this carton is 2,304 cubic inches.(2) The exterior of each can is 6 inches high and has a diameter of 4 inches.
OG12 OG15 OG16 OG17 OG18 OG19 OG20 OG2022	What is the median number of employees assigned per project for the projects at Company Z?(1)25 percent of the projects at Company Z have 4 or more employees assigned to each project.(2)35 percent of the projects at Company Z have 2 or fewer employees assigned to each project.
OG19 OG20 OG2022	If S=1+$$\frac{1}{2^{2}}+\frac{1}{3^{2}}+\frac{1}{4^{2}}+\frac{1}{5^{2}}+\frac{1}{6^{2}}+\frac{1}{7^{2}}+\frac{1}{8^{2}}+\frac{1}{9^{2}}+\frac{1}{10^{2}}$$, which of the following is true?
300难题	In rectangular region PQRS above, T is a point on side PS. If PS = 4, what is the area of region PQRS ? 1.△QTRis equilateral. 2.Segments PT and TS have equal length.
300难题	The addition problem above shows four of the 24 different integers that can be formed by using each of the digits 1,2, 3, and 4 exactly once in each integer, what is the sum of these 24 integers?
Ready4	If arc PQR above is a semicircle, what is the length of diameter $PR$ ? (1) $a = <font color='#FE8080'>4</font>$ (2) $b = 1$
Ready4	What is the difference between the twelfth and eleventh terms of the sequence 0, 0, 1, 4, 11 ... whose $n$ th term is $2^{n-1}-n$ ?
Ready4	A treasure hunt competition requires a team of 4 students. There are 6 students who are willing to participate: John, Edward, Milner, Luiz, Howard and Paul. However, Edward and Milner do not want to be on a team together, while Paul only wants to be on a team if Edward is also. How many different teams can be formed?
Ready4	If $xy=xz$ , does $z=<font color='#FE8080'>4</font>$ ? (1) $y=2$ (2) $x$ and $z$ are both positive
	How many crayons are in a certain box? (1) If the crayons were evenly distributed among a group of 7 children, 3 crayons would be left over. (2) If the crayons were evenly distributed among a group of 4 children, 2 crayons would be left over.
	In the figure shown, triangle ABC is inscribed in the circle. What is the circumference of the circle?(1)AB is a diameter of the circle.(2)The ratio of the lengths of BC, AC, and AB, respectively, is 3 : 4 : 5.
Magoosh	A cow is tethered to the corner of a rectangular shed. If the length of the rope is 5, and the shed has length 4 and width 3, what is the maximum area that is accessible to the cow? (The cow cannot enter the shed).
	说的是两个正方形夹着个圆问圆的周长是不是大于61: 小正方形的边长大于2(好像是)？2: 大正方形的边长大于4这道题没有图是我自己画的
PREP07 Test 1	At least 100 students at a certain high school study Japanese. If 4 percent of the students at the school who study French also study Japanese, do more students at the school study French than Japanese?(1) 16 students at the school study both French and Japanese.(2) 10 percent of the students at the school who study Japanese also study French.
PREP07 Test 2	Of the 20 people who each purchased 2 tickets to a concert, some used both tickets, some used only 1 ticket, and some used neither ticket. What percent of the tickets that were purchased by the 20 people were used by those people? (1) Of the 20 people, 10 used only 1 ticket.(2) Of the 20 people, 4 used neither ticket.
PREP07 Test 1	Jack and Mark both received hourly wage increases of 6 percent. After the wage increases, Jack's hourly wage was how many dollars per hour more than Mark's? (1) Before the wage increases, Jack's hourly wage was $5.00 per hour more than Mark's.(2) Before the wage increases, the ratio of Jack's hourly wage to Mark's hourly wage was 4 to 3.
PREP07 Test 2	Each of the 105 students in a certain club is either a freshman, a sophomore, or a junior. How many of the students in the club are sophomores?(1) The ratio of the number of freshmen to the number of sophomores is 1 to 2. (2) The ratio of the number of freshmen to the number of juniors is 1 to 4.