If y is an integer, then the least possible value of |23 – 5y| is…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve this question, we must make sure we interpret it correctly. We are not finding the least possible value of y, but rather …
If 4 is one solution of the equation x^2 + 3x + k = 10, where k is a…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: The phrase “4 is one solution of the equation” means that one value of x is 4. Thus, we first must plug 4 for …
If Juan takes 11 seconds to run y yards, how many seconds will it take…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: This problem is testing us on the Rate x Time = Distance relationship. This relationship also tells us that Rate = Distance/Time and Time …
If the quotient a/b positive, which of the following must be…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given that a divided by b is positive (or greater than zero). We know that in division when a quotient is positive, …
Lucy invested $10,000 in a new mutual fund account exactly…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: To determine the value of the account today we want to set up an expression showing the various percent increases and decreases. Remember we …
If n is a prime number greater than 3, what is the remainder when n^2…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: We see that n can be ANY PRIME NUMBER GREATER THAN 3. Let’s choose the smallest prime number greater than 3 and substitute it …
Of the 50 researchers in a workgroup, 40 percent will be
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: We are given that there are a total of 50 researchers in the workgroup and that 40% will be assigned to team A and …
Of the five coordinates associated with points A, B, C, D…
May 6, 2015
GMAT OFFICIAL GUIDE PS Solution: Before attacking this question, we want to review what “absolute value” means. The absolute value of a number measures or is the distance that …