【GMAT考满分题库检索】GMAT数学DS题库_GMAT 真题

序号	题目内容
121	A box contains only white balls, red balls and green balls. What is the probability of selecting a ball that is either red or white?(1) The probability of selecting a white ball at random is$$\frac {2}{5}$$(2) The probability of selecting a green ball at random is$$\frac {1}{3}$$
122	Q is a cube. What is the volume of the cube?Statement #1: The total surface area of Q is 150 sq. cmStatement #2: The distance from one vertex through the center of Q to the opposite vertex is $$5\sqrt{3}$$
123	If d is a decimal, is d $$ \ge $$ 1.55?(1) When d is rounded to the nearest tenth, the result is 1.6(2) When d is rounded to the nearest integer, the result is 2
124	If x and y are positive integers, is $$ \frac{X}{Y}$$$$\lt$$$${X+2}\over{Y+3}$$? Statement #1: y > 20 Statement #2: x < 5
125	In the diagram above, O is the center of the circle and angle AOB = 144º. What is the area of the circle? Statement #1: The area of sector AOB is 40% of the area of the circle Statement #2: Arc ACB has a length of 14$$\pi$$.
126	What is the value of x?Statement #1:$$(x – 5)^2$$=0Statement #2: $$(x – 3)^2$$ = 4
127	The numbers a, b, and c are all non-zero integers. Is a > 0?Statement #1: $$b^3$$ = aStatement #2: $$\sqrt[3]{C}$$=a
128	Is y > x?Statement #1: y = x + 1Statement #2: y = $$x^2$$ + 1
129	In the diagram above, O is the center of the circle, DC = a and DO = b. What is the area of the circle? Statement #1: $$a^2$$ – 2ab + $$b^2$$ = 36 Statement #2: a + b = 22
130	P and Q are positive integers. Is P odd?Statement #1: （$$P^2$$）Q is oddStatement #2: P + Q is even
131	If wxyz ≠$$\neq$$0, does wxyz = 1?(1) w = $$\frac{1}{x}$$ , y = $$\frac{1}{z}$$(2) w$$x^2$$ = $$1\over{xyz}$$
132	What is the value of $$9x^2$$ – 30xy +$$ 25y^2$$ ?Statement #1: 3x – 5y = 20Statement #2: x + y = 12
133	What is the value of x?(1) $$ x^2$$ - 5x + 6 = x - 3(2) 3x - (3 + y) = 2x - y
134	If n is a positive integer, is $$ \frac{1}{n}$$ -$${1}\over{n+1}$$ $$\lt$$0.05?Statement #1: n is oddStatement #2: n is a positive multiple of 7
135	The figure on the left is an isosceles right triangle, and the figure on the right is a square of length 3. What is the value of b?Statement #1: b is the length of the diagonal of the square.Statement #2: the triangle and the square have the same area.
136	Is p $$\gt$$ q?Statement #1:$$ p^2$$ >$$ q^2$$Statement #2: $$ p^3$$ >$$ q^3$$
137	If O is the center of the circle, what is the area of the circle?(1) Triangle AOC has area 18(2) Arc ABC has length $$3\pi$$
138	A box contains only red chips, green chips and blue chips. If a chip is randomly selected from the box, what is the probability that the chip is either red or green?(1) The probability of selecting a green chip is $$\frac{1}{3}$$ (2) The probability of selecting a blue chip is $$\frac{1}{7}$$
139	If x is an integer, is x odd? (1) x + (x + 1) + (x + 2) is odd (2) $$x^2$$ is even
140	What is the value of x?Statement #1: $$x^4$$ = 2,401Statement #2: $$x^5$$ = 16,807

序号

题目内容

121

A box contains only white balls, red balls and green balls. What is the probability of selecting a ball that is either red or white?(1) The probability of selecting a white ball at random is$$\frac {2}{5}$$(2) The probability of selecting a green ball at random is$$\frac {1}{3}$$

122

Q is a cube. What is the volume of the cube?Statement #1: The total surface area of Q is 150 sq. cmStatement #2: The distance from one vertex through the center of Q to the opposite vertex is $$5\sqrt{3}$$

123

If d is a decimal, is d $$ \ge $$ 1.55?(1) When d is rounded to the nearest tenth, the result is 1.6(2) When d is rounded to the nearest integer, the result is 2

124

If x and y are positive integers, is $$ \frac{X}{Y}$$$$\lt$$$${X+2}\over{Y+3}$$? Statement #1: y > 20 Statement #2: x < 5

125