If x, y, and z are positive numbers, what is the value…
December 19, 2017
GMAT OFFICIAL GUIDE DS – Solution: We need to determine (x + z)/2. Statement One Alone: x – y = y – z Simplifying the equation, we have: x …
Tag: data sufficiency
Is the product of two positive integers x and y divisible by…
December 19, 2017
GMAT Guide Solution: We can write the question: Is xy/(x + y) = integer? Statement One Alone: x = y Since x = y, we have: Is xy/(x + …
If r and t are three-digit positive integers, is r greater than t
December 19, 2017
GMAT OFFICIAL GUIDE DS Solution: We are given that r and t are three-digit positive integers and need to determine whether r is greater than t. Statement One Alone: …
In the multiplication table above, each letter represents an
December 19, 2017
GMAT OFFICIAL GUIDE DS Solution: We need to determine the value of c. Following our table, we have: a x c = f b x c = h and …
Jack wants to use a circular rug on his rectangular office floor…
December 19, 2017
GMAT OFFICIAL GUIDE DS Statement One Alone: Jack’s rug covers an area of 9π square feet. If the area of the rug is 9π square feet, then the radius …
Each month, Jim receives a base salary plus…
December 19, 2017
GMAT OFFICIAL GUIDE DS Solution: To show Jim’s salary and commissions last month, we can create an equation in which n = his base salary and p = his …
Last school year, each of the 200 students at…
December 19, 2017
GMAT OFFICIAL GUIDE DS Solution: We are given that there are 200 students and 8 cultural performances. We need to determine the average number of students attending each cultural …
If a and b are integers, is a + b + 3 an odd integer
December 18, 2017
GMAT OFFICIAL GUIDE DS Solution: We need to determine whether a + b + 3 is odd, or in other words, whether a + b is even. Statement One …