If Sara’s age is exactly twice Bill’s age, what is Sara’s…
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that Sara’s age is twice Bill’s age. If we let Sara’s current age = S and Bill’s current age = B, …
In the figure above, if the area of the smaller square region is 1/2
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We begin by sketching the diagram. We are given that the area of triangular region D is 4, and we must determine the length …
Last year the price per share of Stock X increased by k percent and…
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that the price per share of Stock X increased by 10 percent over the same time period that the price per …
What amount did Jean earn from the commission on her sales
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We need to determine the amount that Jean earned from the commission on her sales in the first half of 1988. Statement One Alone: …
In the figure above, what is…
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given a figure, and we need to determine the value of x + y. Let’s sketch the diagram below: Statement One Alone: …
Any decimal that has only a finite number of nonzero digits…
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: In analyzing whether r/s is a terminating decimal, we can use the following rule: The decimal equivalent of a fraction will terminate if and …
What was the total amount of revenue…
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that a theater sold 400 tickets, some at full price and others at x percent of the full price. Let’s let …
If the average (arithmetic mean) of four different numbers is 30…
May 5, 2016
GMAT OFFICIAL GUIDE DS Solution: We are given that the average of 6 numbers in a list is 75. Using this information we see that the sum of the …