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# Archive | Rate Problems

## Distance Rate Time Formula Memorization Shortcut

When working on Distance-Rate-Time questions, you will inevitably use one of the following three formulas. 1. Distance = (Rate)(Time) 2. Rate = Distance/Time 3. Time = Distance/Rate Did you know that there’s a quick and easy shortcut for recalling all three formulas? The shortcut is similar to some of the shortcuts you learned in highschool […]

## 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 […]

## 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 […]

## Math Basics – Distance, Rate and Time

The 4th of July weekend is upon us, and many of us will be taking road trips, or even taking a plane somewhere. To commemorate this collective movement, let’s learn the most fundamental formula when dealing with movement over time. First, let’s meet Bob… Bob drives at an average rate of 50 mph from Berkeley […]

## GRE Math Strategies – When to Plug-In

See if you can finish this rate problem in less than two minutes. A transcontinental jet travels at a rate of x – 100 mph with a headwind and x + 100 mph with a tailwind between Wavetown and Urbanio, two cities 3,200 miles apart. If it takes the jet 2 hr 40 minutes longer […]