The Revised GRE is a long, grueling test. To get a perfect score on the quantitative section (a 170) you will not only have to answer the difficult questions correctly, but you will also have to answer all of the easy ones. Nonetheless, I’ve focused on the difficult questions for the 170-challenge. I can’t promise [...]
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GRE Data Interpretation Strategies
Helpful Tips for the GRE Data Interpretation Section If I had to count the number of questions/concerns regarding combinations or permutations, I’d have to use some pretty mighty factorials to do so. On the other hand, if I had to count the number of times students have expressed the same misgivings regarding Data Interpretation, I’d [...]
GRE Quantitative Comparison: The Devil is in the Details
Many quantitative comparison questions come with parameters. Parameters are basically a few ground rules that are listed above Column A and Column B. x is a positive integer Column A Column B The quantity in Column A is greater The quantity in Column B is greater The two quantities are equal The relationship cannot [...]
Compound Interest vs. Simple Interest on the GRE
For some this is the most “interest”ing concept on the Revised GRE (at least for those with a fondness for bad puns). For most, compound vs simple section can be a nuisance. Many think, what is the difference between the two, and/or how did that formula go again? But remember, this concept involves money, and [...]
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 Permutations: Practice Question of the Week #37 Answer
Here’s the answer to yesterday’s practice question, thanks for sending in all of your answers! Video Explanation
GRE Permutations: Practice Question of the Week #37
Here’s this week’s practice question (regular multiple choice, just one answer), we’ll be posting the answer tomorrow. Good luck! A popular website requires users to create a password consisting of digits only. If no digit may be repeated and each password must be at least 9 digits long, how many passwords are possible? 9! + [...]
Common GRE Math Mistakes
General Mistake #1: Not reading the problem carefully Under timed conditions, you may feel compelled to rush. But remember, by misreading a word (or not reading it entirely), you can make a relatively straightforward problem seem intractable. You may flail about the answer choices, picking one – usually the incorrect one – that happens to [...]
GRE Word Problem Trap #1: “Cannot be determined…”
“Cannot be determined by the information given” Michael drives x miles due north at arrives at Point A. He then heads due east for y miles. Finally, he drives z miles a straight line towards is starting point. If x, y, and z are integers, then how many miles did Michael drive if the shortest [...]
