Try this DS Problem from Veritas Prep’s New GMAT Question Bank
Earlier this month we launched our new GMAT Question Bank. This new resource contains hundreds of realistic, completely free GMAT practice questions.
The reaction so far has been extremely positive, but the one question that keeps coming up is, “What’s the catch? When will you start charging for this?” (Okay, that’s two questions.) The answers are:
- There is no catch.
- We currently have no plans to charge for the GMAT Question Bank.
We created this tool and opened it up to everyone so that we can collect data on our questions. We will use the data we collect to measure and refine our questions, which will then go into new generations of our GMAT practice tests. In effect, by answering these questions, you are helping our system learn about the questions — which ones are easy, which ones are hard, which ones are confusing and need to be refined, etc. The system is also learning about each user. It’s an iterative process that helps it measure users by seeing how they did on certain questions, and it assesses those questions by seeing how well certain users performed on those questions.
The Veritas Prep GMAT Question Bank not only contains hundreds of GMAT problems, but it also contains a complete solution for each problem. You can come back and log in at any time to review individual questions and track your progress against that of other users. And best of all, you can try out hundreds of new practice questions, all designed to keep up with the always-evolving GMAT and to provide students with practice on the topics that give them the most trouble. For example, try this problem, which tests factors, multiples, and “must be true logic” in the GMAT’s tricky way, from our bank:
For integers x and y, if , which of the following must be true?
I. y > x
II. is an integer
III. The cube root of x is an integer
A) I only
B) II only
C) III only
D) I and II
E) II and III
Solution: B. Statement 1 is not necessarily true. x could equal -8 and y could equal -91, for example, in which case the equation holds but to equal , then the prime factorization: . y must then be able to account for the prime factor of 7 on the other side of the equation. And statement 3 is not necessarily true. While x must account for the factors , it could also include a non-cubed factor as well. For example, x could be and y could be . The equation would hold because the extra 5 is accounted for on both sides. x MUST account for , but need not be limited to just that, as x and y could have duplicate factors on either side. Beware the statements that look very likely to be true when you face these “must be true” problems – the GMAT is a master of misdirection.
The number of questions in the system will vary over time as the system validates questions. Once the system deems a question good enough to be in one or our 15 GMAT practice tests, it may disappear from the Question Bank and only be available to Veritas Prep GMAT students. But, rest assured that you can come back and view your past results at any time, even if some of the questions you previously answered have “graduated” from the system and have been added to our students-only practice tests.
Finally, right now you will see the five question types that are in the computer-adaptive parts of the GMAT: Critical Reasoning, Sentence Correction, Reading Comprehension, Data Sufficiency, and Problem Solving. We will also add Integrated Reasoning questions shortly… so stay tuned!
What are you waiting for? Visit the Veritas Prep GMAT Question Bank, register, and get started!