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If x is a positive integer greater than 1, is x a prime numb
If x is a positive integer greater than 1, is x a prime number?[(1) x does not have a factor p such that 2<p<x.(2) The product of any two factors of x is greater than 2 but less than 10.
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x and y are two integers greater than 1. Is x^y greater than
x and y are two integers greater than 1. Is x^y greater than 8?(1) The sum of ANY two factors of x^2 is even. (2) The product of ANY two factors of y^3 is odd.
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The ratio , by volume of soap to alcohol to water
The ratio , by volume of soap to alcohol to water in a 76 litre solution is 2: 50: 100 . The solution is then altered by adding more soap, alcohol and water.After this alteration the ratio, by volume...
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A cargo ship carrying four kinds of items, doohickies, geega
A cargo ship carrying four kinds of items, doohickies, geegaws, widgets, and yamyams, arrives at the port. Each item weighs 2, 11, 5, and 7 pounds, respectively, and each item is weighed as it is...
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Need help for best study strategy in the next few weeks :)
Hey everybody.i'll give some background and you tell me what you think is the best strategy to maximize my score.i need 48 at the quantitative part (other parts doesn't matter).i want to take the test...
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Is D greater than 1.55
If d is a decimal, is d 1.55?(1) When d is rounded to the nearest tenth, the result is 1.6(2) When d is rounded to the nearest integer, the result is 2I am struggling to solve this question on the...
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If sequence S has 200 terms, what is the 192nd term of S
If sequence S has 200 terms, what is the 192nd term of S ?(1) The first term of S is 40.(2) Each term of S after the first term is 3 less than the preceding term.The Official Guide for GMAT Review 12th...
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Official Guide 12ed DS Explanations
these are ds explanations for 12ed OG by Geff Sackmann.copied from gmathacks and compiled into a pdf file
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If 8^{2x+3}=2^{3x+6}, then x =
The Official Guide For GMAT Quantitative Review, 2ND EditionIf 8^{2x+3}=2^{3x+6}, then x = (A) -3(B) -1(C) 0(D) 1(E) 3Problem SolvingQuestion: 96Category:Algebra First-degree equationsPage:...
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Of the following, the closest approximation to
The Official Guide For GMAT Quantitative Review, 2ND EditionOf the following, the closest approximation to \sqrt{\frac{5.98(601.5)}{15.79}} is(A) 5(B) 15(C) 20(D) 25(E) 225Problem SolvingQuestion:...
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Which of the following CANNOT be the greatest common divisor
The Official Guide For GMAT Quantitative Review, 2ND EditionWhich of the following CANNOT be the greatest common divisor of two positive integers x and y?(A) 1(B) x(C) y(D) x - y(E) x + yProblem...
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If a, b, and c are nonzero numbers and a + b = c, which of t
The Official Guide For GMAT Quantitative Review, 2ND EditionIf a, b, and c are nonzero numbers and a + b = c, which of the following is equal to 1 ?(A) (a - b)/c(B) (a - c)/b(C) (b - c)/a(D) (b -...
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Last year Carlos saved 10 percent of his annual earnings. Th
The Official Guide For GMAT Quantitative Review, 2ND EditionLast year Carlos saved 10 percent of his annual earnings. This year he earned 5 percent more than last year and he saved 12 percent of his...
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Set A consists of all distinct prime numbers which are 2 mor
Set A consists of all distinct prime numbers which are 2 more than a multiple of 3. If set B consists of distinct integers, is set B a subset of set A?(1) Set B consist of two positive integers whose...
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If p and q are positive integers, what is the value of p/q^2
If p and q are positive integers, what is the value of p/(q^2)?(1) p is a multiple of q^2.(2) q is a multiple of p.
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For all numbers s and t, the operation * is defined by s*t
For all numbers s and t, the operation * is defined by s*t = (s - 1)(t + 1). If (-2)*x = -12, then x =(A) 2(B) 3(C) 5(D) 6(E) 11
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For all z, [z] denotes the least integer greater than or equ
The Official Guide For GMAT Quantitative Review, 2ND EditionFor all z, [z] denotes the least integer greater than or equal to z. Is [x] = 0 ?(1) -1< x < -0.1(2) [x + 0.5] = 1Data...
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If Aaron, Lee, and Tony have a total of $36, how much money
The Official Guide For GMAT Quantitative Review, 2ND EditionIf Aaron, Lee, and Tony have a total of $36, how much money does Tony have?(1) Tony has twice as much money as Lee and 1/3 as much as...
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Is z less than 0?
The Official Guide For GMAT Quantitative Review, 2ND EditionIs z less than 0?(1) xy > 0 and yz < 0.(2) x > 0Data SufficiencyQuestion: 98Category:Arithmetic Properties of numbersPage:...
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