If [x] is the greatest integer less than…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: Remember that an integer is a “whole number” (either positive or negative), or 0. Thus, if we want to know the greatest integer less …
If y is the smallest positive integer such that 3,150…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: This problem is testing us on the rule that when we express a perfect square by its unique prime factors, every prime factor’s exponent …
A club collected exactly $599 from its members. If each…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: Let’s first divide= 599 by 12 (the minimum amount each member could contribute) and then use the remainder to finish the problem. 599/12 = …
In a weight-lifting competition, the total weight of Joe’s…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: This problem is a general word translation. We first define variables and then set up equations. We can define the following variables: F = …
The front of a 6-foot-by-8-foot rectangular door has brass…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve this problem we can view it as a type of “shaded region” problem, in which we first determine the area of the …
In order to complete a reading assignment on time, Terry…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: We can solve this problem in a similar manner to solving a work problem, and we can use a table to organize our information. …
Club X has more than 10 but fewer than 40 members…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: Although this problem appears to be a general word problem it is actually testing us on our understanding of remainders when dividing integers. We …
If n = 3⁸ – 2⁸ which of the following is NOT…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: We would never be asked to calculate 3^8 or 2^8, so we must approach this problem not as an arithmetic question but as an …