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PREP07 Test 2 At a certain stand, all soft drinks cost the same and all sandwiches cost the same. How much does 1 sandwich cost at the stand? (1) At the stand, 1 sandwich and 2 soft drinks cost a total of $3.15.(2) At the stand, 3 sandwiches and 1 soft drink cost a total of $5.70.
190113 还原机经选题: 数论&代数 X=$$\frac{1}{2\sqrt{3}+\sqrt{7}}$$.X+$$\frac{1}{X}$$=?
Magoosh Given that x $$\neq$$ 0, y $$\neq$$ 0, and (x+y) $$\neq$$ 0, is $$\frac{y}{x}$$ $$\gt$$ $${y}\over{x+y}$$?Statement #1: x > –1Statement #2: y > –1
OG12 OG15 $${S}=\frac{\frac{2}{n}}{\frac{1}{x}+\frac{2}{3x}}$$In the expression above, if $${x}{n}≠{0}$$, what is the value of S?(1)x = 2n(2)$$n =\frac{1}{2}$$
OG15 OG16 OG17 OG18 OG19 OG20 OG2022 In the xy-coordinate plane, is point R equidistant from points (-3,-3) and (1,-3) ?(1) The x-coordinate of point R is -1(2) Point R lies on the line y = -3.
300难题 If x and y are integers, is xy+ 1 divisible by 3 ?[br/[ 1.When x is divided by 3, the remainder is 1. 2.When y is divided by 9, the remainder is 8.
Manhattan What is the value of a – 2?(1) a – 2 > 1(2) a + 2 = 6
PREP07 Test 2 If w and z are positive, is$$\frac{w}{z}$$ < 1 ?(1) w < z(2) z < 4
Is 1 < x < 2?(1)0< x(2)x< 3
Magoosh At the moment there are 54,210 tagged birds in a certain wildlife refuge. If exactly 20 percent of all birds in the refuge are tagged, what percent of the untagged birds must be tagged so that half of all birds in the refuge are tagged?
Manhattan If$$ 9^{2x + 1} = 27^{2}$$, then x =
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If and are constants of which is the smallest, and for all numbers , what is the value of ?
300难题 When a certain stretch of highway was rebuilt and straightened, the distance along the stretch was decreased by 20 percent and the speed limit was increased by 25 percent. By what percent was the driving time along this stretch reduced for a person who always drives at the speed limit?
PREP07 Test 1 If integer p is greater than 1, is p a prime number?(1) p is odd.(2) The only positive factors of p are 1 and p.
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On a certain day, a movie theater is playing all 3 parts of a trilogy. Part 1 plays every hour, beginning at 10:00 a.m., and lasts  hours. Part 2 plays every hours, beginning at 10:00 a.m., and lasts 2 hours. Part 3 plays every hours beginning at 12:15 p.m. What is the least total amount of time a person planning to watch all 3 parts of the trilogy in order must spend waiting between movies if all movies keep to their schedules?
PREP07 Test 2 If k is an integer greater than 1, is k equal to 2^r for some positive integer r ?(1) k is divisible by 2^6.(2) k is not divisible by any odd integer greater than 1.
OG18-数学分册 GMAT、gmat题库、gmat模考、gmat考满分As shown in the diagram above, a lever resting on a fulcrum has weights of $$w_{1} $$ pounds and $$w_{2}$$ pounds, located $$d_{1}$$ feet and $$d_{2}$$ feet from the fulcrum. The lever is balanced and $$w_{1}d_{1} = w_{2}d_{2}$$. Suppose $$w_{1}$$ is 50 pounds and $$w_{2}$$ is 30 pounds. If $$d_{1}$$ is 4 feet less than $$d_{2}$$, what is $$d_{2}$$, in feet?
OG12 OG15 If n is a positive integer, is the value of b - a at least twice the value of $${3}^{n}-{2}^{n}$$ ?(1)$$a ={2}^{n+1}$$ and $$b={3}^{n+1}$$(2)$$n = 3$$
Magoosh When positive integer k is divided by 6 the remainder is 3. Which of the following CANNOT be an even integer?
Of the following, which is greatest?