If m = 3^n, what is the greatest value of n for which m is a
If m = 3^n, what is the greatest value of n for which m is a factor of 25! (A) 8(B) 10(C) 12(D) 14(E) 16My Question: Please provide an explanation on how to arrive at the answer.Disclaimer: I have used...
View ArticleThe product of integers x,y, and z is even. Is z even ?
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View ArticleIf m and n are positive integers. What is the units digit of
If m and n are positive integers. What is the units digit of p^(m*n) ?(1) The units digit of p^m is 1(2) The units digit of p^n is 1Can somebody please explain ?Thanks
View ArticleFor any positive x, y and k, if kx is n% of y
For any positive x, y and k, if kx is n% of y, then what percentage must x be of y?A) (n/k)%B) (n+k)%^nC) (nk)%^nD) (n-k)%E) (100 (n/k))%
View ArticleHow many different subsets of the set {0, 1, 2, 3, 4, 5} do
(Source GMAT Club test)How many different subsets of the set {0, 1, 2, 3, 4, 5} do not contain 0?a) 16b) 27c) 31d) 32e) 64The official answer is 32, but I did my math and arrived at 31. Would be of...
View ArticleDivisible question for the experts
Hey guys,Just starting to get into quant studies and I came across a stumper. The question states, "if j is divisible by 12 and 10, is j divisible by 24"I created prime boxes for 12 and 10 and deduced...
View ArticleDoubt on Solution to Inequalities
HiWhen we take the inequality (x-3)*(x-6)>0, I understand that this eq is a parabola that passes through the X-axis at x=3 and x=6.This also shows that the expression is positive between x>3 and...
View ArticleFour identical circles are drawn in a square such that each
Four identical circles are drawn in a square such that each circle touches two sides of the square and two other circles (as shown in the figure below). If the side of the square is of length 20 cm,...
View ArticleIs x-y > r-s ?
Is x - y > r - s ? (1) x > r and y < s(2) y=2, s=3, r=5, and x=6Disclaimer: I have used the Search Box Before Posting. I used the first sentence of the question or a string of words exactly as...
View Articleif n is a multiple of 5 ...
if n is a multiple of 5 and n=P^2q,where p and g are prime numbers, which of the following must be a multiple of 25?a. p^2b. q^2c. pqd. (P^2)(q^2)e. (P^3)(q)
View Article2^5+2^5+3^5+3^5+3^5 = ?
2^5+2^5+3^5+3^5+3^5 = ?a. 5^6b. 13^5c. 2^6 + 3^6d. 2^7 + 3^8e. 4^5 + 9^5
View ArticleA and B together can complete one-ninth of a job in a day.
A and B together can complete one-ninth of a job in a day. What is the difference between the maximum and minimum number of days A could take to complete the job alone, if A and B take whole number of...
View ArticleFrom a certain number of people who attended an interview
From a certain number of people who attended an interview, x people were selected. If instead, x+2 are selected, the number of possible selections would be the same. Which of the following cannot be...
View ArticleSet Theory - Tacos and Enchiladas
A restaurant serves only tacos and enchiladas. If 60% of all who ate at the restaurant on a certain day ordered tacos, what percentage of those who ate at the restaurant ordered enchiladas that day?(1)...
View ArticleLeaders , Directors and Fundraisers
A nonprofit group organizes its local fundraisers in teams, with each of its L team leaders responsible for D group directors, and each of those D group directors responsible for F fundraisers. If the...
View ArticleIf |a+5|=|b+5| what is the value of a + b
If |a+5|=|b+5| what is the value of a + b?1) b > 5 and a < 52) b = 10
View ArticleThe number of female students in college XYZ in the
The number of female students in college XYZ in the previous year was 500. If in the current year the number of male students in XYZ doubled over that of the previous year but the proportion of male...
View ArticleA non empty set S has less than four elements. How many
A non empty set S has less than four elements. How many elements does the set S have?(1) Median of set S is the lowest element in the set S.(2) Number of subsets of set S is less than eight.
View ArticleWhat can I do to improve my Quant score?
Hello everyone,I have been exhausting every single math books in Manhattan, Veritas, Kaplan, and for some reason I keep missing at least 16 questions in the practice tests in the GMAT Prep- Math...
View ArticleFile containing good GMAT DS questions for download
File containing good GMAT DS questions for download
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