First, a bank of eight practice problems 1) A certain zoo has mammal and reptiles and birds, and no other animals. The ratio of mammals to reptiles to birds is 11: 8:5. How many birds are in the zoo? Statement (1): there are twelve more mammals in the zoo than there are reptiles Statement (2): […]
First, a few practice GMAT math questions. 1) Last year, the price of a vacation package was P. At the beginning of this year, the price went up 40%. Lucas used a travel voucher to purchase the vacation package at 30% off this year’s price. In terms of P, how much did Lucas pay? (A) […]
First, try these challenging GMAT practice problems. Give yourself a strict time-limit of six minutes for the set. 1) If A is a number, which of the following must be true for any A? 2) If F and G are integers, with F < G, which of the following must be true? 3) If J […]
On the GMAT Quantitative section, the Problem Solving questions are just the familiar five-choice multiple choice math problems you have seen on every standardized test since well before puberty. Here, you have discovered a veritable treasure chest of Problem Solving sample questions. Below is a link to thirty-two different articles on this blog, each with […]
Few topics perplex students like circles on the GMAT. “What was the formula for area of a circle, again? I know pi is in there somewhere!” With a few simple insights, though, this entire topic simplifies. First, let’s look at a problem. How do you find the do calculations for something like this? Given that […]
A good deal of success in math is simply about careful detail management. If you are, by nature, someone already comfortable with math, highly organized and detail oriented, probably none of these mistakes will plague your work. This is a post for folks who may be a little rusty in math, and need to be […]
Learn this powerful method for unlocking devilishly complicated problems about sets. Practice questions First, try these challenging 700-level practice questions. 1) At Veridux Corporation, there are 250 employees. Of these, 90 are female, and the rest are males. There are a total of 40 managers, and the rest of the employees are associates. If […]
Learn the powerful shortcuts through these problems! Practice Questions Before reading this post, try these three related practice questions. 1) Is a positive? Statement #1: > a Statement #2:> a 2) Is a positive? Statement #1: > a Statement #2: < a 3) Is a positive? Statement #1: < a Statement #2: < a […]
Understand how to handle these tricky upper level Quant problems! Definitions A sequence is a list of numbers that follow some mathematical patterns. More formally, a sequence is a function whose inputs are limited to the positive integers. Terms are denoted by a letter for the whole sequence, and in the subscript, the index, which […]
Sometimes, the best choice from among two options is neither of them! Approaches to the GMAT Quantitative Section Many quantitative problems contain numbers and demand numerical calculations. Others contain variables, and one can use either an algebraic approach or a numeric approach. See this blog post for more on that choice. Folks are often […]
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