Example: If medical researchers are correct, then the human microbiome, made up of the microorganisms in our body, may hold the cure to diseases that have long plagued humanity, amounting to a major oversight in Western medicine that has, until recently, all but ignored any such role of the microbiome. (A) humanity, amounting to a […]

## GMAT Tuesdays with Kevin: Mix Up Your Study Day

Hello! It’s the perfect day: you wake up and realize you have 3 free hours to use for GMAT prep! In addition to that, you also have a Magoosh premium account–lucky you! Now, how do you make the most of this study session? Where should you begin to maximize the time you have? That’s what […]

## Counting Practice Problems for the GMAT

1) A librarian has 4 identical copies of Hamlet, 3 identical copies of Macbeth, 2 identical copies of Romeo and Juliet, and one copy of Midsummer’s Night Dream. In how many distinct arrangements can these ten books be put in order on a shelf? (A) 720 (B) 1,512 (C) 2,520 (D) 6,400 (E) 12,600 […]

## One More RTD Table Problem: Average Rates Part 2

If you haven’t been following our series on RTD tables, take a few minutes to catch up: Using Diagrams to Solve Rate Problems: Part 1 Using Diagrams to Solve Rate Problems: Part 2 A Different Use of the RTD Table: Part 1 A Different Use of the RTD Table: Part 2 Using the RTD Table […]

## One More RTD Table Problem: Average Rates Part 1

My last several posts have been devoted to the use of a table to answer rate problems. Today’s post will assume familiarity with that table, so please take a look back at these posts is you’re not already familiar with the RTD table: Using Diagrams to Solve Rate Problems: Part 1 Using Diagrams to Solve […]

## GMAT Tuesdays: Interview with Magoosh CEO, Bhavin Parikh

Hello! Ever wonder who the man behind Magoosh is? On this edition of GMAT Tuesday’s with Kevin, I’m treating you to an interview with Magoosh CEO Bhavin! Watch this week’s video to learn about Bhavin’s life leading up to business school, his advice for how to thrive in b-school, and of course, his spirit animal. […]

## Using the RTD Table for a Complicated Problem

My last few blog posts have involved rate problems about simultaneous movement. In each of these problems we discovered exactly two travelers who either (1) moved at their own constant rates for the entire time period covered by the story, or (2) moved at their own constant rates and started and stopped simultaneously. If you’d […]

## A Different Use of the RTD Table: Part 2

Let’s recap where we left off yesterday. We were working with this diagram: We wanted to solve for Mary’s time, t. In every row the relationship among rate, time, and distance is the same: RT=D. In this diagram the bottom row looks the most promising, since it alone contains only the variable for which we’re […]

## A Different Use of the RTD Table: Part 1

In my last couple of posts (Using Diagrams to Solve GMAT Rate Problems Part 1 and Part 2) I used a Rate-Time-Distance table, (or RTD table) to solve the most common sort of rate problem: a combined-rate problem in which two travelers move in opposite directions simultaneously. (If you haven’t read those posts and aren’t […]

## GMAT Tuesdays with Kevin: Sentence Correction — Must Know Idioms #7

Hello! Today, join me in rainy Southern California for even more idiom practice! Here’s the board work for this GMAT Tuesday: And if you have any questions or comments, be sure to leave it in the comment box below.

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