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GMAT考满分·题库

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OG19-定量推理	On Monday, the opening price of a certain stock was $100 per share and its closing price was $110 per share. On Tuesday the closing price of the stock was 10 percent less than its closing price on Monday, and on Wednesday the closing price of the stock was 4 percent greater than its closing price on Tuesday. What was the approximate percent change in the price of the stock from its opening price on Monday to its closing price on Wednesday?
OG21 OG2022	In the xy plane, the distance between the origin and the point(4,5)is the same as the distance between which of the following two points?
Ready4	If $r$ , $s$ , and $t$ are constants, where $r < s < t$ , and $x^3-16x=(x-r)(x-s)(x-t)$ for all numbers $x$ , what is the value of $t$ ?
OG17 OG18 OG19 OG20 OG2022	When n liters of fuel was added to a tank that was already $$\frac1 3$$ full, the tank was filled to $$\frac7 9$$ of its capacity. In terms of n, what is the capacity of the tank, in liters?
200301	As shown in the figure, the four circles are tangent to each other, and the radius is r, so what is the area of the shaded part?
300难题	In the figure above, the area of the shaded region is
OG19-数学分册	On the number line, the shaded interval is the graph of which of the following inequalities?
第一期	If$$x = \sqrt{3} +\sqrt{7}$$ , what is the value of $$x+\frac{1}{x}$$ ?
PREP07 Test 2	Which of the following lists the number of points at which a circle can intersect a triangle?
OG15 OG16 OG17 OG18	Which of the following equations is NOT equivalent to $${10}{y}^{2}=({x}+{2})({x}-{2})$$?
Ready4	The perimeter of an isosceles right triangle is $<font color='#FE8080'>4</font>+<font color='#FE8080'>4</font>\sqrt{2}$ . What is the length of the hypotenuse?
Ready4	$((\frac{1}{3})^{-<font color='#FE8080'>4</font>})^{-0.25} - ((\frac{1}{3})^<font color='#FE8080'>4</font>)^{0.25}=$
191222	$$\sqrt { 8 + \sqrt { 4 } 4 } * \sqrt { 8 - \sqrt { 44 } } =$$
OG12 OG15 OG16	A straight pipe 1 yard in length was marked off in fourths and also in thirds. If the pipe was then cut into separate pieces at each of these markings, which of the following gives all the different lengths of the pieces, in fractions of a yard?
Ready4	If $a$ , $b$ , and $c$ are constants, where $a < b < c$ , and for all numbers $x$ : $x^3-4x=(x-a)(x-b)(x-c)$ What is the value of $a$ ?
Ready4	If $\sqrt{a^2-15}=\sqrt{36}-\sqrt{25}$ , which of the following is a possible value for $a$ ?
190215	Is $$x^{4}$$ < $$x^{2}y^{2}$$ ? 1:$$x^{2}$$ < $$\frac{1}{4}$$ 2:$$x^{2}$$ < $$\frac{x}{4}$$
Magoosh	If $$\frac{4}{w} + \frac{4}{x} = \frac{4}{y} and wx = y$$, then the average (arithmetic mean) of w and x is
Ready4	What is the value of $\frac{a}{<font color='#FE8080'>4</font>} - \frac{b}{<font color='#FE8080'>4</font>}$ ? (1) $\frac{a - b}{<font color='#FE8080'>4</font>} = 12$ (2) $a-b=24$
Ready4	For which of the following functions $h(x)$ is $h(x)=h(2-x)$ for all $x$ ?