GMAT OG2019_数学
GMAT OG2019 数学DS新题第326题(附解析) certain housing development, the average (arithmetic mean) price of 20 new houses was $160,000. Did more than 9 of the 20 houses have prices that were less than the average price l
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GMAT OG2019 数学DS新题第318题(附解析) If xy≠0, is x³+ y³ >0 ? (1) x+y>0(2) xy>0
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GMAT OG2019 数学DS新题第301题(附解析) Is the sum of the prices of the 3 books that Shana bought less than $48 ?(1) The price of the most expensive of the 3 books that Shana bought is less than $17.(2) The price of the
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GMAT OG2019 数学DS新题第293题(附解析) If n is an integer, what is the greatest common divisor of 12 and n?(1) The product of 12 and n is 432(2) The greatest common divisor of 24 and n is 12

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GMAT OG2019 数学DS新题第290题(附解析) The 10 students in a history class recently took an examination. What was the maximum score on the examination?(1) The mean of the scores was 75,(2) The standard deviation of the s
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GMAT OG2019 数学DS新题第288题(附解析) On June 1, Mary paid Omar $360 for rent and utilities for the month of June. Mary moved out early, and Omar refunded the money she paid for utilities, but not for rent, for the day
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GMAT OG2019 数学DS新题第278题(附解析) Is x+1/y>x/y ?(1) 0 < x < y (2) xy > 0

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GMAT OG2019 数学DS新题第277题(附解析) In a real estate office that employs n salespeople, f of them are females and x of the females are new employees. What is the value of n ?(1) If an employee were randomly selected
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GMAT OG2019 数学DS新题第261题(附解析) What is the circumference of circle C ?(1) The radius of circle C is 2π (2) The center of circle C is located at point (7, 8)in the xy-plane
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GMAT OG2019 数学DS新题第255题(附解析) If a+b+c=12, what is the value of b ?(1)a+b=8;(2)b+c=6
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GMAT OG2019 数学DS新题第251题(附解析) Machine R and machine S work at their respective constant rates. How much time does it take machine R, working alone, to complete a certain job ?(1) The amount of time that it take
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GMAT OG2019 数学DS新题第249题(附解析) Was the amount of John’ s heating bill for February greater than it was for January ? (1) The ratio of the amount of John's heating bill for February to that for January was 26/2
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GMAT OG2019 数学DS新题第248题(附解析) Last semester, Professor K taught two classes, A and B. Each student in class A handed in 7 assignments, and each student in class B handed in 5 assignments. How many students were
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GMAT OG2019 数学DS新题第244题(附解析) How many men are in a certain company’s vanpool program ?(1) The ratio of men to women in the program is 3 to 2. (2) The men and women in the program fill 6 vans.
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GMAT OG2019 数学DS新题第243题(附解析) In a recent town election, what was the ratio of the number of votes in favor of a certain proposal to the number of votes against the proposal ?
(1) There were 60 more votes in f
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