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Magoosh题集

Magoosh针对GRE考试备考材料相对可以，其推出的GMAT模考题对时间固定GMAT考生来说，老师并不建议过多时间花费在该材料上。这些题可以作为词汇拓展训练。

201 If the circle has radius 6, what is the area of the triangle?(1) AC = AB(2) BC = 12 202 If x and y are integers and xy $\neq$ 0, is x - y > 0?(1) $\frac {x}{y}$ < $\frac {1}{2}$(2)$\sqrt{x^2} = x$ and $\sqrt{y^2}$ = y
203 In the circle above, chord AC = 85. What is the area of the circle?Statement #1: ∠ABC = 90°Statement #2: AB = 51 and BC = 68
204 Is quadrilateral ABCD a square?Statement #1: angle A = angle C = 90ºStatement #2: AB = AD
205 If x and y are positive integers, is $x^2y^2$ even ?(1) x + 5 is a prime number(2) y + 1 is a prime number
206 Judith and Quincy started with the same amount of money to invest at the beginning of 2012. Judith's investments increased by P percent in the year 2012 and then increased by Q percent in the year 2013. From the start of 2012 to the end of 2013, Quincy's investment increased by R percent. Which one of them had more money by the end of 2013? Statement #1: P + Q < RStatement #2:$R-P-Q\lt\frac{PQ}{100}$
207 Set S consists of all the positive multiples of 5 that are less than K, and K is a positive integer not divisible by 5. The mean of Set S is not divisible by 5. Let N be the number of members of the set. N is not divisible by 5. What does N equal?Statement #1: N < 52Statement #2: $\frac{K}{5}$ > 48
208 A drawer contains 8 socks, and 2 socks are selected at random without replacement. What is the probability that both socks are black?(1) The probability is less than 0.2 that the first sock is black.(2) The probability is more than 0.8 that the first sock is white.
209 Is $\frac{x^n}{x^{n+1}}＞\frac{x^{n+1}} {x^n}$?(1) x < 0(2) n < 0
210 Suppose A and B are two events, not independent. Is the probability P(A and B) > $\frac{1}{3}$?Statement #1: P(A) = 0.8 and P(B) = 0.7Statement #2: P(A or B) = 0.9
211 Is$x^2 > y^2$?(1) x + y < 0(2) x - y < 0
212 If N is a positive integer, does N have exactly three distinct positive factors?Statement #1: the integer $N^2$has exactly five distinct factorsStatement #2: only one factor of N is a prime number
213 A, B, R and S are four positive numbers. Does AS = BR? Statement #1: $\sqrt{A^2+B^2}=\sqrt{R^2+S^2}$Statement #2: In the x-y plane, the line through (A, B) and (R, S) goes through the origin
214 In the diagram above, AC = AB, and angle DAB = angle DBC. What is the measure of angle BCD?Statement #1: angle BDC = 2*(angle DAB)Statement #2: AD = BD
215 Is positive integer n divisible by 4?(1)$n^2$is divisible by 8(2)$\sqrt{n}$is an even integer
216 Rachel drove the 120 miles from A to B at a constant speed. What was this speed?Statement #1: If she had driven 50% faster, her new time would have been $\frac{2}{3}$ of her original time.Statement #2: If she had driven 20 mph faster, she would have arrived an hour sooner.
217 If x and y are integers and xy $\neq$ 0, what is the value of$x^{-2y} \over{y^{2x}}$?(1) x + y = 0(2) xy = $\frac{y}{x}$
218 If $x^{a - b} = 1$, what is the value of x ?(1) $a \neq b$(2) x > 0
219 In the diagram above, A is the center of the circle, angle BAD = 90°, and the area of triangle ABD is $24\sqrt{3}$. Point C is the intersection of segment BD with the circle. What is thearea of the circle? Statement #1: AB = 12Statement #2: AD = CD
220 If CD = 6, what is the length of BC?(1) $BD=6\sqrt{3}$(2) x = 60 9362

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