《(2015)GMAT官方指南》 OG 15

《(2015)GMAT官方指南:综合》是GMAC(GMAT考试命题机构)中国大陆的单家授权版本,体现了GMAT考试2015年的改革趋势,是GMAT考试必备参考书。书中提供900道全真试题,涵盖GMAT考试所有题型,并配有全面的答案解析。题目按难易程度排列,帮助考生节省备考时间。 其中,OG15的DS部分共有 174 题,全部经由老师核对确认并标上题号及难度(根据官方标准划分)。

题目列表

序号 题目内容
81 If the ratio of the number of teachers to the number of students is the same in School District M and School District P, what is the ratio of the number of students in School District M to the number of students in School District P ?(1)There are 10,000 more students in School District M than there are in School District P.(2)The ratio of the number of teachers to the number of students in School District M is 1 to 20.
82 If $$r > 0$$ and $$s > 0$$, is$$\frac{r}{s}<\frac{s}{r}$$ ?(1)$$\frac{r}{3s}=\frac{1}{4}$$(2)$$s = r + 4$$
83 If k is an integer such that 56 < k < 66, what is the value of k ?(1) If k were divided by 2, the remainder would be 1(2) If k + 1 were divided by 3, the remainder would be 0.
84 k, n, 12, 6, 17What is the value of n in the list above?(1)k < n(2)The median of the numbers in the list is 10.
85 If x and y are integers, what is the value of x + y ?(1) $$3<{\frac{x+y}{2}}<4$$(2) $$2<{x}<{y}<5$$
86 What is the value of b + c ?(1)ab + cd + ac + bd = 6(2)a + d = 4
87 What is the average (arithmetic mean) of j and k ?(1)The average (arithmetic mean) of j + 2 and k + 4 is 11.(2)The average (arithmetic mean) of j, k, and 14 is 10.
88 Paula and Sandy were among those people who sold raffle tickets to raise money for Club X. If Paula and Sandy sold a total of 100 of the tickets, how many of the tickets did Paula sell?(1)Sandy sold $$\frac2 3$$ as many of the raffle tickets as Paula did.(2)Sandy sold 8 percent of all the raffle tickets sold for Club X.
89 A number of people each wrote down one of the first 30 positive integers. Were any of the integers written down by more than one of the people?(1)The number of people who wrote down an integer was greater than 40.(2)The number of people who wrote down an integer was less than 70.
90 Is the number of seconds required to travel $${d}_{1}$$ feet at $${r}_{1}$$ feet per second greater than the number of seconds required to travel $${d}_{2}$$ feet at $${r}_{2}$$ feet per second?(1)$${d}_{1}$$ is 30 greater than $${d}_{2}$$.(2)$${r}_{1}$$ is 30 greater than $${r}_{2}$$.
91 Last year, if Arturo spent a total of $12,000 on his mortgage payments, real estate taxes, and home insurance, how much did he spend on his real estate taxes?(1)Last year, the total amount that Arturo spent on his real estate taxes and home insurance was $$33\frac{1}{3}$$ percent of the amount that he spent on his mortgage payments.(2)Last year, the amount that Arturo spent on his real estate taxes was 20 percent of the total amount he spent on his mortgage payments and home insurance.
92 If a, b, c, and d are positive numbers, is $$\frac a b < \frac c d$$ ?(1) $$0<\frac{(c-a)}{(d-b)}$$(2)$$(\frac{ad}{bc})^{2}<{\frac{ad}{bc}}$$
93 Is the number of members of Club X greater than the number of members of Club Y ?(1)Of the members of Club X, 20 percent are also members of Club Y.(2)Of the members of Club Y, 30 percent are also members of Club X.
94 In a certain office, 50 percent of the employees are college graduates and 60 percent of the employees are over 40 years old. If 30 percent of those over 40 have master's degrees, how many of the employees over 40 have master's degrees?(1)Exactly 100 of the employees are college graduates.(2)Of the employees 40 years old or less, 25 percent have master's degrees.
95 GMAT、gmat题库、gmat模考、gmat考满分On the number line above, p, q, r, s, and t are five consecutive even integers in increasing order. What is the average (arithmetic mean) of these five integers?(1)q + s = 24(2)The average (arithmetic mean) of q and r is 11.
96 If [x] denotes the least integer greater than or equal to x, is [x] = 0 ?(1) -1 < x< 1(2) x < 0
97 If x and y are integers, is x > y?(1) x+y >0(2) $${y}^{x}$$ < 0
98 Is rst = 1 ?(1)rs= 1(2)st= 1
99 If r and s are the roots of the equation $${x}^{2}+{b}{x}+{c}={0}$$, where b and c are constants, is rs < 0 ?(1) b < 0(2) c < 0
100 GMAT、gmat题库、gmat模考、gmat考满分The figure above represents a circle graph of Company H's total expenses broken down by the expenses for each of its five divisions. If O is the center of the circle and if Company H's total expenses are $5,400,000, what are the expenses for Division R ?(1)x = 94(2)The total expenses for Divisions S and T are twice as much as the expenses for Division R.

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