GMAT & MBA Admissions Blog

Basic GMAT Math Facts and Formulas

Posted by Mark Skoskiewicz on Wed, Mar 24, 2021 @ 04:43 PM

Performing well on the quantitative section of GMAT requires a mix of math theory, test taking strategy, and critical thinking skills. While it’s important not to approach the quant section of the GMAT like a math test, it is also helpful to have logged certain facts and formulas in your brain. Most of the math theory you need to know does not go beyond high school algebra, so you’ve almost certainly “known it” before. You just need to re-learn and refresh.

Read More

Tags: GMAT quant, GMAT tips

How to Approach GMAT Combinatorics: Key Principles

Posted by Morgan Bissett-Tessier on Tue, Feb 09, 2021 @ 01:19 PM

Combinatorics is the art of counting. You’ll need to understand this art to do well on the GMAT.

It is common for GMAT students looking for a 700+ score to have many questions about GMAT combinatorics problems. These are the GMAT questions that ask you to count up all the possible arrangements of individuals and groups in a variety of situations: How many ways can 5 men and 5 women be ordered in a line? How many high fives occur in a group of 15 people on a basketball team? GMAT tutors often find themselves spending an inordinate amount of time helping students improve their ability to answer these types of GMAT questions.

Read More

Tags: GMAT quant, GMAT tutor, GMAT, MBA Admissions, gmat test prep, gmat math, MBA prep, MBA degree, online gmat, gmat tutorial

2018 Official Guide to the GMAT Review Series: Problem #23 (Algebra Distance-Rate Problems)

Posted by John Easter on Fri, Aug 31, 2018 @ 02:43 PM

This post is the fourth in our series on using strategies to answer specific questions from the 2018 Official Guide. Here, one of our most experienced GMAT tutors, John Easter, analyzes a question about distance-rate.

Read More

Tags: GMAT quant, GMAT tutor, GMAT prep, GMAT Blog, MBA Admissions, online gmat tutor, gmat study skills, gmat math

2018 Official Guide to the GMAT Review Series: Problem #17 (Direct Calculation)

Posted by John Easter on Wed, Aug 29, 2018 @ 02:42 PM

This post is the third in our series on using strategies to answer specific questions from the 2018 Official Guide. Here, one of our most experienced GMAT tutors, John Easter, analyzes a question about direct calculation.

Read More

Tags: GMAT quant, GMAT tutor, GMAT prep, GMAT Blog, MBA Admissions, online gmat tutor, gmat study skills, gmat math

2018 Official Guide to the GMAT Review Series: Problem #44 (Problem Solving - Prime numbers)

Posted by John Easter on Mon, Jul 23, 2018 @ 09:55 AM

This post is the second in our series on using strategies to answer specific questions from the 2018 Official Guide. Here, one of our most experienced GMAT tutors, John Easter, analyzes a question about prime numbers using problem solving skills.

Problem #44 of the 2018 Official Guide to the GMAT states that if n is a prime number greater than 3, what is the remainder when n^2 is divided by 12?

Read More

Tags: GMAT quant, GMAT tutor, GMAT prep, GMAT Blog, MBA Admissions, online gmat tutor, gmat study skills, gmat math

2018 Official Guide to the GMAT Review Series: Problem #167 (Back solving Variable in Choices)

Posted by John Easter on Mon, Jul 16, 2018 @ 10:25 AM

in this series, one of our most experienced GMAT tutors, John Easter, applies useful strategies to answer questions from the 2018 Official Guide. 

Problem #167 of the 2018 Official Guide to the GMAT states that four extra-large sandwiches of exactly the same size were ordered for m students where m>4. Three of the sandwiches were evenly divided among the students. Since 4 students did not want any of the fourth sandwich, it was evenly divided among the remaining students. If Carol ate one piece from each of the four sandwiches, the amount of sandwich that she ate would be what fraction of a whole extra-large sandwich?

 

Read More

Tags: GMAT quant, GMAT tutor, GMAT resources, GMAT Blog, MBA Admissions, gmat test prep, gmat study skills, improving your gmat score, gmat math

GMAT Quant 101: Basic Facts & Concepts to Remember

Posted by Mark Skoskiewicz on Thu, Jun 14, 2018 @ 08:00 AM

In our GMAT tutoring sessions, we constantly remind students that the GMAT is not a math test. Although there are some rules you need to know, doing well requires that you think in a structured yet flexible way and approach each question as a problem that needs to be solved strategically and creatively. Rote memorization of facts and formulas is not the answer. Building critical thinking skills is the path to a 700+ GMAT score. 

Read More

Tags: GMAT quant, GMAT tutor, gmat tutoring, GMAT prep, GMAT resources, GMAT, GMAT score, MBA Admissions, deliberate practice, gmat test prep, gmat study skills, GMAT study guide

Use Problem Solving Efficiency to Achieve Problem Solving Success

Posted by Stefan Maisnier on Wed, May 16, 2018 @ 09:00 AM

Excelling at any skills-based endeavor demands an economy of motion where most mistake maximum effort for excellent execution. The GMAT is no different. Every Quantitative Problem Solving question has a litany of potential paths to a solution, and the successful GMAT student’s goal is to reach that solution in the fewest number of steps possible. The key is to take note of all the information provided in the proper order, consider what information may be hidden in the answer choices, and to then calculate for the desired information. This is the subject of today’s video tutorial with our Director of Online Tutoring – Stefan Maisnier.

Read More

Tags: GMAT quant, GMAT prep, GMAT, MBA Admissions, gmat test prep, online gmat tutoring, GMAT online, gmat study skills

GMAT Question of the Day #343  - YES/NO Question

Posted by Mark Skoskiewicz on Thu, May 18, 2017 @ 11:22 AM

This week's GMAT Question of the Day relates to question #343 from the Official Guide for GMAT Review, 2017. It is a typical AD/BCE, YES/NO Question.

Read More

Tags: GMAT quant, GMAT prep

GMAT Question of the Day #311 - Data Sufficiency

Posted by Mark Skoskiewicz on Thu, May 11, 2017 @ 11:22 AM

For today's GMAT Question of the Day, we have an AD/BCE Value Question, relating to question #311 from theOfficial Guide for GMAT Review, 2017. See below for a clear, step-by-step example and explanation.

Read More

Tags: GMAT quant, GMAT prep