In Mr. Smith’s class, what is the ratio of…
October 30, 2015
GMAT OFFICIAL GUIDE DS Solution: We need to determine the ratio of the number of boys to the number of girls. If we denote the number of boys as …
Tag: GMAT Solutions
On a recent trip, Mary drove 50 miles. What was the average…
October 30, 2015
GMAT OFFICIAL GUIDE DS Solution: We are being tested on average speed. The formula for average speed is: average speed = total distance/total time We are given that the …
What percent of the drama club members enrolled…
October 30, 2015
GMAT OFFICIAL GUIDE DS – Solution: An easy way to solve the problem is to set up a double set matrix. In our matrix we have two main categories: …
What is the value of n…
October 29, 2015
GMAT OFFICIAL GUIDE DS Solution: We need to determine the value of n in the list: n, 15, 12, 9, 20. Statement One Alone: n > 12 Only knowing …
In triangle PQR, if PQ = x, QR = x + 2, and PR = y…
October 29, 2015
GMAT OFFICIAL GUIDE DS Solution: We start by sketching the triangle. We need to determine the angle with the greatest degree measure. Remember that the angle with the greatest …
The number of seats in the first row of an auditorium is 18…
October 29, 2015
GMAT OFFICIAL GUIDE DS Solution: We are given that there are 18 seats in the first row of an auditorium and that in each row after the first there …
If n + k = m, what is the value of k ?
October 29, 2015
GMAT OFFICIAL GUIDE DS Solution: We are given that n + k = m, and we need to determine the value of k. Since we know that n + …
If Car X followed Car Y across a certain bridge that is 1/2…
October 29, 2015
GMAT OFFICIAL GUIDE DS Solution: We are given that Car X follows Car Y across a bridge that is ½ mile long. We need to determine the time, in …