本题库为OG16版的题目。OG 即Official Guide 官方指南，是备考GMAT的必备资料。本题库的OG题目练习，帮助你进一步发现薄弱知识点和易错题型。OG建议大家刷3遍，第一遍刷纸质，第二遍计时精刷，第三遍刷错题。做完后记得及时分析总结。
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The Glass House Mountains in Queensland,Australia, were sighted in 1770 by the English navigator Captain James Cook, by whom they were named supposedly because its sheer wet rocks glistened like glass.
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Marcia's bucket can hold a maximum of how many liters of water?(1) The bucket currently contains 9 liters of water.(2) If 3 liters of water are added to the bucket when it is half full of water, the amount of water in the bucket will increase by 1/3.
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If x, y, and z are positive integers, is x - y odd?(1) x = z2(2) y=(z-1)2
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Is n an integer?(1) n2 is an integer.(2) √n is an integer.
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What is the value of (2t+t-x)/(t-x)?(1)2t/(t-x)=3(2) t-x = 5
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If n is apositive integer, is (1/10)n ＜0.01?(1) n＞2(2) (1/10)n-1＜0.1
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Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species. Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates. Clearly, dropping this restriction would allow the other species to recover. Which of the following, if true, most seriously undermines the argument?
A share of company P is 20 percent more expensive than a share of company Q. What is the ratio of the total value of shares outstanding of company Q to the total value of shares outstanding of company P?(1)The trading volume of shares of company Q is 25 percent more than that of company P.(2) The value of shares outstanding of company Q is $6,000,000 and the value of shares outstanding of company P is $8,000,000.
A fraternity wants to enroll members of the college rowing team as members. The result of the fraternity's effort to recruit new members from the rowing team exceeds the fraternity's expectation by 20 percent. Assuming that the rowing team admits only males, what is the total number of people on the rowing team?(1) The goal was to enroll 15 percent of the members of the rowing team.(2) The number of rowing team members enrolling as new fraternity members was 40.
The letters C, I, R, C, L and E can be used to form 6-letter strings such as CIRCLE or CCIRLE. Using these letters, how many different 6-letter strings can be formed in which the two occurrences of the letter C are separated by at least one other letter?
The cost of each adult's ticket for a certain concert was $30, and the cost of each child's ticket for the concert was $24. If Hannah purchased tickets for this concert, what was the average (arithmetic mean) cost per ticket?(1) Hannah purchased twice as many children's tickets as adults' tickets.(2) Hannah purchased 4 children's tickets.
If the prime numbers p and t are the only prime factors of the integer m, is m a multiple of p2 t ?(1) m has more than 9 positive factors.(2) m is a multiple of p3 .
If m and r are two numbers on a number line, what is the value of r ?(1) The distance between r and 0 is 3 times the distance between m and 0 .(2) 12 is halfway between m and r.
If t is a positive integer and r is the remainder when t2 + 5t + 6 is divided by 7, what is the value of r ?(1) When t is divided by 7, the remainder is 6.(2) When t2 is divided by 7, the remainder is 1.
If n is a positive integer and r is the remainder when n2 - 1 is divided by 8, what is the value of r ?(1) n is odd.(2) n is not divisible by 8.
If n is an integer between 2 and 100 and if n is also the square of an integer, what is the value of n ?(1) n is even.(2) The cube root of n is an integer.