Manhattan题集

Manhattan是美国一个类似XDF的教育辅导机构,网上常常直接用于指代它所出版的一系列GMAT复习资料。其备考资料在GMAT备考计划中使用广泛,考生多用来进行强化练习或巩固提升。Manhattan的书籍内容多是以理论与实践相结合的形式进行编写,前半部分主要对各个单项进行理论知识的介绍,后半部分则着重强化练习,并带有详细的题目解析,旨在帮助考生更好的理解文章含义,提升GMAT阅读的做题水平。
其中第一套共包含DS题目 131 题。

题目列表

序号 题目内容
21 If x and y are positive integers, is (x + y) a prime number?(1) x = 1(2) y = 2 × 3 × 5 × 7
22 On Sunday morning, a printing press printed its newspapers at a constant rate from 1:00 AM to 4:00 AM. How many newspapers did the printing press print on Sunday morning? (1) The printing rate on Saturday morning was twice that of Sunday morning. (2) On Saturday morning, the printing press ran at a constant rate from 1:00 AM to 3:00 AM, stopped for a half hour, and then ran at the same constant rate from 3:30 AM to 5:30 AM, printing a total of 4,000 newspapers.
23 GMAT、gmat题库、gmat模考、gmat考满分If BD = CD, what is the degree measure of x + y?(1) v = 74 degrees(2) w = 32 degrees
24 If none of the students are ambidextrous, what percentage of the 20 students in Mr. Henderson's class are left-handed? (1) Of the 12 girls in the class, 25% are left-handed. (2) 5 of the boys in the class are right-handed.
25 If X is the average of Y numbers, what is Y? (1) X = 54.5 (2) The sum of the Y numbers for which X is the average is 2,616.
26 A cake recipe uses a constant ratio of 2 teaspoons vanilla extract to 1 ounce chocolate. If the original recipe, which serves four people, is altered proportionally to yield a cake that serves six people, how many ounces of chocolate will be used in the larger cake?(1) The original recipe calls for exactly five teaspoons of vanilla extract.(2) If the original recipe were altered proportionally to yield a cake that serves eight people, ten teaspoons of vanilla extract would be used.
27 If a kennel houses only cats and dogs, what percent of the animals in the kennel are dogs? (1) The ratio of cats to dogs in the kennel is 2:3. (2) The ratio of dogs to the total number of animals is 3:5.
28 Is Hector taller than Charley?(1) Hector is 5 feet 7 inches tall.(2) When Hector stands on a 3-inch thick book, he is one inch taller than Charley.
29 In Greenville last July, what was the average (arithmetic mean) home sale price?(1) In Greenville last July, there were 100 homes sold for a total of $51 million.(2) In Greenville last July, condominiums accounted for 60% of the home sales, and the average condominium price was $450,000.
30 If 3x – 3y = 12z, what is the value of x?(1) 4z = 2 + y(2) 4z = 6 – y
31 If x and y each represent a single digit, does the number 8.3xy round to 8.3 when it is rounded to the nearest tenth?(1) x = 5 (2) y = 9
32 If Sarah was 21 years old exactly 5 years ago, how old was Larry exactly 9 years ago? (1) Larry is now twice Sarah's age. (2) Twelve years ago, Jill was 6 years older than Sarah and 20 years younger than Larry.
33 If x and y are integers, is 5x + y divisible by 5?(1) x is divisible by 5.(2) y is divisible by 5.
34 If$$ xy \neq 0$$, what is the ratio of y to x?(1) y = 3x(2) x = 11
35 If Bob, working alone, can paint a certain room in 3 hours, how long does it take Bob and Richard working together to paint the room? (1) Richard, working alone, can paint the room in 2 hours.(2) Richard paints at a constant rate that is 50% greater than the rate at which Bob paints.
36 If z is an integer, is z even?(1) $$\frac{z}{2}$$ is even.(2) 3z is even.
37 What is the value of y? (1) 2 x + 2 y = 14 (2) 2 y + 2 z = 14
38 At what point does the line ax + y + b = 0 intersect the y-axis?(1) b = 5(2) a = 3
39 At a certain school, 100 students are in the marching band. If 40% of the students in the orchestra are also in the marching band, how many students are members of neither the orchestra nor the marching band? (1) There are 1000 students in the school. (2) 50 students are in the orchestra.
40 The contents of one full cylindrical silo are to be transferred to another, larger cylindrical silo. The contents of the smaller silo will fill what portion of the larger silo? (1) The larger silo has twice the base radius, and twice the height, of the smaller one. (2) The smaller silo has a circular base with a radius of 10 feet.

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