GMAT Math Articles

  • GMAT Tricks with Systems of Equations: Part 3

    GMAT Tricks with Systems of Equations: Part 3

    by on February 25th, 2015

    A lot of GMAT test-takers vaguely remember a rule from high school, that it’s possible to solve for two variables if and only if you’re given two equations, and generally that it’s possible to solve for n variables … Read More

  • GMAT Tricks with Systems of Equations: Part 2

    GMAT Tricks with Systems of Equations: Part 2

    by on February 21st, 2015

    A lot of GMAT test-takers vaguely remember a rule from high school, that it’s possible to solve for two variables if and only if you’re given two equations, and generally that it’s possible to solve for n variables … Read More

  • GMAT Avengers Study Group: Graphs & Illustrations

    GMAT Avengers Study Group: Graphs & Illustrations

    by on February 20th, 2015

    The Graphics Interpretation problems present us with a piece of data in the form of a graph, Venn diagram, scatter plot, etc. Before we start with a few practice problems, let’s share the links to the BTG articles that … Read More

  • GMAT Tricks with Systems of Equations: Part 1

    GMAT Tricks with Systems of Equations: Part 1

    by on February 19th, 2015

    A lot of GMAT test-takers vaguely remember a rule from high school, that it’s possible to solve for two variables if and only if you’re given two equations, and generally that it’s possible to solve for n variables … Read More

  • REVIEW: Manhattan GMAT’s 6th Edition Word Problems Strategy Guide

    REVIEW: Manhattan GMAT’s 6th Edition Word Problems Strategy Guide

    by on February 18th, 2015

    The series of ten Manhattan Prep Sixth Edition Strategy Guides were released in December 2014 and each guide provides content-based curricula that has been developed by instructors who have scored in the 99th percentile … Read More

  • The GMAT Avengers Challenge of the Week – Min/Max Quant Problems

    The GMAT Avengers Challenge of the Week – Min/Max Quant Problems

    by on February 16th, 2015

    Happy Monday! After breaking down the GMAT topics into the main question types, the GMAT Avengers are now ready to take it to the next level. During the upcoming months, the study group will focus on challenge problems … Read More

  • Why You Felt Like You Scored Well on the GMAT Quant Section, But Didn’t

    Why You Felt Like You Scored Well on the GMAT Quant Section, But Didn’t

    by on February 15th, 2015

    I’ve seen this happen many times before. It leaves students bewildered because all of the signs that would lead them to expect a lower score are absent. They did not run out of time, they did not have to guess at … Read More

  • The Word “Or” in GMAT Math

    The Word “Or” in GMAT Math

    by on February 11th, 2015

    Consider the following scenario: Suppose you solve for all the numbers in a Venn Diagram, in a scenario in which 200 students are taking AP Chemistry, AP Literature, both, or neither. Here are the results you find: OK, … Read More

  • Master These GMAT Math Skills

    Master These GMAT Math Skills

    by on February 10th, 2015

    Start the year off strong by diving in to your GMAT prep with vigor (or renewed vigor, as the case may be). The math section is often the most feared, but the quantitative content on the GMAT is definable and … Read More

  • GMAT Avengers Study Group: Work Rate Problems

    GMAT Avengers Study Group: Work Rate Problems

    by on February 9th, 2015

    When the rate is a rate of work being done, then when two people work together, their combined rate is the SUM of their respective individual rates. We need to make sure what are we adding are the rates, not anything … Read More

  • REVIEW: Manhattan GMAT’s 6th Edition Fractions, Decimals, & Percents Strategy Guide

    REVIEW: Manhattan GMAT’s 6th Edition Fractions, Decimals, & Percents Strategy Guide

    by on February 6th, 2015

    After looking at Guide 0 (GMAT Roadmap: Expert Advice Through Test Day) I was ready to see what the Manhattan Prep GMAT series could offer in terms of Quantitative preparation for prospective students who were looking … Read More

  • GMAT Avengers Study Group: Interest Rates

    GMAT Avengers Study Group: Interest Rates

    by on February 4th, 2015

    Let’s first talk about Simple Interest and Compound Interest. Simple Interest – The formula for SI is principal * interest rate * time, where “principal” is the starting amount and … Read More

  • One More RTD Table Problem: Average Rates Part 2

    One More RTD Table Problem: Average Rates Part 2

    by on February 2nd, 2015

    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 … Read More

  • Solving Average Speed Problems

    Solving Average Speed Problems

    by on January 29th, 2015

    Average speed problems are common on the GMAT. These questions can be tricky if you haven’t practiced solving them, because the most obvious answer choice is a trap. To see why, try the following problem: Joe drives … Read More