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OG20-语文分册 OG20 OG19-数学分册 OG19 OG18-数学分册 OG18 OG17 OG16 OG15 OG12 PREP07 Test 2 PREP07 Test 1 Manhattan Magoosh KMFDS 排列组合 几何 应用题 代数 数论 OG2022

《(2017)GMAT官方指南》 OG 17

《（2017）GMAT官方指南（综合）》是GMAC（GMAT考试命题机构）中国大陆单家授权版本，是GMAT考试必备的专业辅导书。书中提供900余道全真试题，新增61道语文、61道数学以及8道在线综合推理试题，涵盖GMAT考试所有题型，并配有全面的答案解析。 其中，OG17的DS部分共有 174 题，题号从231到404，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
310 If the positive integer n is added to each of the integers 69,94, and 121, what is the value of n?(1) 69 + n and 94 + n are the squares of two consecutive integers.(2) 94 + n and 121 + n are the squares of two consecutive integers.
311 Guy's net income equals his gross income minus his deductions. By what percent did Guy's net income change on January 1, 1989, when both his gross income and his deductions increased?(1)Guy`s gross income increased by 4 percent on January 1, 1989.(2)Guy`s deductions increased by 15 percent on January 1, 1989.
312 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.
313 Each gift certificate sold yesterday by a certain bookstore cost either $10 or $50. If yesterday the bookstore sold more than 5 gift certificates that cost $50 each, what was the total number of gift certificates sold yesterday by the bookstore?(1) Yesterday the bookstore sold fewer than 10 gift certificates that cost $10 each.(2) The total cost of gift certificates sold yesterday by the bookstore was $460.
314 What is the tens digit of positive integer x ?(1)x divided by 100 has a remainder of 30.(2)x divided by 110 has a remainder of 30.
315 Three dice, each of which has its 6 sides numbered 1 though 6, are tossed. The sum of the 3 numbers that are facing up is 12. Is at least 1 of these numbers 5?(1) None of the 3 numbers that are facing up is divisible by 3.(2) Of the numbers that are facing up, 2, but not all 3. are equal.
316 On the number line, point R has coordinate r and point T has coordinate t. Is $$t<0$$?(1) $$-1<{r}<0$$(2) The distance between R and T is equal to $${r}^{2}$$.
317 S is a set of points in the plane. How many distinct triangles can be drawn that have three of the points in S as vertices?(1) The number of distinct points in S is 5.(2) No three of the points in S are collinear.
318 Stores L and M each sell a certain product at a different regular price. If both stores discount their regular price of the product, is the discount price at Store M less than the discount price at Store L ?(1)At Store L the discount price is 10 percent less than the regular price; at Store M the discount price is 15 percent less than the regular price.(2)At Store L the discount price is $5 less than the regular store price; at Store M the discount price is $6 less than the regular price.
319 If d denotes a decimal, is $$d \ge 0.5$$?(1)When d is rounded to the nearest tenth, the result is 0.5.(2)When d is rounded to the nearest integer, the result is 1.
320 GMAT、gmat题库、gmat模考、gmat考满分Two points, N and Q (not shown), lie to the right of point M on line ℓ. What is the ratio of the length of QN to the length of MQ?(1) Twice the length of MN is 3 times the length of MQ.(2) Point Q is between points M and N.
321 In a survey of 200 college graduates, 30 percent said they had received student loans during their college careers, and 40 percent said they had received scholarships. What percent of those surveyed said that they had received neither student loans nor scholarships during their college careers?(1)25 percent of those surveyed said that they had received scholarships but no loans.(2)50 percent of those surveyed who said that they had received loans also said that they had received scholarships.
322 Did the sum of the prices of three shirts exceed $60?(1) The price of the most expensive of the shirts exceeded $30.(2) The price of the least expensive of the shirts exceeded $20.
323 What is the total number of coins that Bert and Claire have?(1) Bert has 50 percent more coins than Claire.(2) The total number of coins that Bert and Claire have is between 21 and 28.
324 A telephone station has x processors, each of which can process a maximum of y calls at any particular time, where x and y are positive integers. If 500 calls are sent to the station at a particular time, can the station process all of the calls?(1) x = 600(2) 100 < y < 200
325 Jazz and blues recordings accounted for 6 percent of the $840 million revenue from the sales of recordings in Country Y in 2000. What was the revenue from the sales of jazz and blues recordings in Country Y on 1998?(1) Jazz and blues recordings accounted fro 5 percent of the revenue from the sales of recordings on Country Y on 1998.(2) The revenue from the sales of jazz and blues recordings in Country Y increased by 40 percent from 1998 to 2000.
326 On a certain nonstop trip, Marta averaged x miles per hour for 2 hours and y miles per hour for the remaining 3 hours. What was her average speed, in miles per hour, for the entire trip?(1) 2x + 3y = 280(2) y = x + 10
327 If x is a positive integer, what is the value of $$\sqrt{x+24}$$ - $$\sqrt{x}$$ ?(1) $$\sqrt{x}$$ is an integer.(2) $$\sqrt{x+24}$$ is an integer.
328 Three machines, K, M, and P, working simultaneously and independently at their respective constant rates, can complete a certain task in 24 minutes. How long does it take Machine K, working alone at its constant rate, to complete the task?(1)Machines M and P, working simultaneously and independently at their respective constant rates, can complete the task in 36 minutes.(2)Machines K and P, working simultaneously and independently at their respective constant rates, can complete the task in 48 minutes.
329 A tank is filled with gasoline to a depth of exactly 2 feet. The tank is a cylinder resting horizontally on its side, with its circular ends oriented vertically. The inside of the tank is exactly 6 feet long. What is the volume of the gasoline in the tank?(1) The inside of the tank is exactly 4 feet in diameter.(2) The top surface of the gasoline forms a rectangle that has an area of 24 square feet.

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