When I started GMAT teaching, I quickly realised that most future MBA students buy the Official Guide but then look for assistance. They do so because the explanations in the OG are not always particularly helpful and the Maths Review is all too brief. So I started writing better explanations, along with tips on things …
Author archives: Chuck
GMAT Review Diagnostic Quantitative Question 1
Question 1 page 20 The key word here is ‘equivalent’. The total payable can be expressed as a sum with two parts: 5(3.99) + 15.95 and each of the answers uses the same format. Now logically, any answer which contains one part the same and the other part different (whether larger or smaller) must add …
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Verbal: The Basics I: Sentence Correction
Here’s a sentence featuring some of the classic pitfalls. Choose from one of the five answers below to complete it correctly. The Chancellor admitted that interest rates, as well as inflation, has been struggling to be kept under control for some months now, with the result that portfolio managers were investing a large proportion of …
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Quantitative: The Basics II: Factorisation, Square numbers and Powers
Here’s another question: What is the smallest positive integer y such that 71,400 multiplied by y is the square of a positive integer? * * * We could spend hours doing this by trial and error. But let’s consider what we know about square numbers, and about their factors, specifically their prime factors. Example 1 36 …
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Quantitative: The Basics I: Times Tables
This is the first of a number of sample questions I’ll use to show you how to tackle the GMAT successfully as well as quickly. Here’s the question: Each of 9 buildings at PetroChemico HQ requires either 24, 36 or 48 fire extinguishers depending on the size of the building. The buildings are either small, …
Starting Off
To start your preparation for the GMAT test I recommend that you do three things: 1. Buy GMAT Review ~ The Official Guide (ISBN 978-1119507673). The Official Guide or OG has all the background information you need, as well as a Diagnostic Test, a Math(s) Review, and a section full of sample questions for each …