The numbers of cars sold at a certain dealership on six of…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve, we will use the number given in each Roman numeral to determine the average and median and determine whether they are equal. …
Tag: GMAT OG 2018
A case contains c cartons. Each carton contains b boxes, and…
May 8, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given that a case contains c cartons. Each carton contains b boxes, and each box contains 100 paper clips. Thus we can …
In a certain sequence, the term xn is given by the formula
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: (Note that the * symbol in this solution indicates multiplication.) We are given that X(n) = 2 * X(n-1) – ½ * X(n-2), for …
The value of (2^(-14) + 2^(-15) + 2^(-16) + 2^(-17))/5 is…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: We start by translating the question. We are asked (2^-14) + (2^-15) + (2^-16) + (2^-17) is how times the value of 2^-17. We …
How many of the integers that satisfy the inequality…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: Before diving into this problem we want to first analyze the given inequality: (x+2)(x+3)/(x-2) ≥ 0 This means that (x+2)(x+3) divided by x-2 is …
Seed mixture X is 40 percent ryegrass and 60 percent bluegrass by weight…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: This is a great problem because we can solve it using equations and substitution, or we can employ some estimation because the equation we …
In an electric circuit, two resistors with resistances x and y…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given the reciprocal of r is equal to the sum of the reciprocals of x and y. Thus we can say: 1/r …
If a two-digit positive integer has its digits reversed…
May 7, 2015
GMAT OFFICIAL GUIDE PS Solution: Let’s first label the original two-digit integer as N. We can then say that N = 10A + B, where A is the tens …