There are few concepts on the GRE that frighten students more than that of probability. Many go out of their way to study difficult probability questions, agonizing over concepts that are beyond the scope of the GRE. Test day, though, you might only see one probability question. You will probably see two, though you might [...]
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GRE Math Multi-subject Challenge Question
Once in a while it is fun to take a concept in an official GRE question and run with it. The question below is inspired by a question from the 2nd edition Official Guide. That is not to say it is that similar; I have only extracted a couple of concepts from that problem. I’ve [...]
Breakdown of the Most Commonly Tested GRE Quant Concepts
The 2nd edition Official Guide has just been released. At the back of the book is a new test (GRE Practice Test 2). In general, the concept break down is not surprising, if you look at the concepts that pop up in Practice Test 1 (which is the same as the practice test in the [...]
GRE Counting and Probability: Practice Question of the Week #39 Answer
Here’s the answer to yesterday’s practice question– thanks for sending in all of your answers and explanations!
GRE Counting and Probability: Practice Question of the Week #39
Here’s this week’s practice question– good luck, we’ll be posting the answer tomorrow! How many integers between and are such that the sum of their digits is ? 190 210 211 230 231 Update: Answer/explanation post!
GRE Probability: Practice Question of the Week #33 Answer
Here are the answer and explanations to yesterday’s practice question, thanks for sending in all of your answers! Explanation Video Explanation
Strategies for Difficult GRE Questions
Below is a challenging GRE question. However, instead of just having you take a blind hack at it, I want to provide a little bit of context. First off, if you sense that a question is very difficult on the test – be it a verbal or quantitative one – then skip it. Because the [...]
Rules and Counting Techniques for Probability on the GRE
In my last two posts, we looked at ways to make up time with probability questions on the GRE by quickly eliminating answer choices, and then guessing the correct answer. In those posts, we examined the following question: From a group of 5 managers (Joon, Kendra, Lee, Marnie and Noomi), 2 people are randomly selected [...]
GRE Probability Questions: Using the Elimination Strategy
In my last post, we examined the following question. From a group of 5 managers (Joon, Kendra, Lee, Marnie and Noomi), 2 people are randomly selected to attend a conference in Las Vegas. What is the probability that Marnie and Noomi are both selected? (A) 0.1 (B) 0.2 (C) 0.25 (D) 0.4 (E) 0.6 In [...]
GRE Probability Questions
If you’re like most students, you probably struggle with the GRE’s time constraints, and you probably have difficulties with probability questions. Great! In this article, we’ll examine how probability questions can provide you with a convenient opportunity to make up lost time. To set this up, please consider the following scenario: It’s test day, and [...]
