If the average (arithmetic mean) of four different numbers is 30
May 6, 2016
GMAT OFFICIAL GUIDE PS Solution: The average of 3, 15, 32, and (N + 1) is 18. We can put this information into the average equation. average = sum/quantity …
Author: Scott Woodbury-Stewart
A rectangular floor that measures 8 meters by 10 meters…
May 6, 2016
GMAT OFFICIAL GUIDE PS Solution: A rectangular floor with the dimensions of 8 meters by 10 meters needs to be covered by carpet squares. Each carpet square measures 2 …
Today Rebecca, who is 34 years old…
May 6, 2016
GMAT OFFICIAL GUIDE PS Solution: We are given that Rebecca is 34 years old and that her daughter is 8 years old. We must determine in how many years …
What is the median number of employees assigned per project…
May 6, 2016
GMAT OFFICIAL GUIDE DS Solution: We want to know the median number of employees assigned per project for the projects at Company Z. Recall that the median is the …
Tom, Jane, and Sue each purchased a new house. The average…
May 6, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that Tom, Jane, and Sue each purchased a new house. We are also given that the average (arithmetic mean) price of …
If x, y, and z are positive integers such that x is a factor of y, and…
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that x, y, and z are positive integers, and we need to determine whether x – y is odd. We must …
What is the value of (2t + t – x)/(t – x)?
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We need to determine the value of (2t + t – x)/(t – x). Using the distributive property we can rewrite this expression as: …
If n is a positive integer, is (1/10)^n < 0.01?
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that n is a positive integer and need to determine whether (1/10)^n < 0.01. We can convert 0.01 to a fraction …