Data Sufficiency

Integer Properties: The Most Common GMAT Question Topic

By - Apr 16, 09:00 AM   Comments [0]

Fact: one of the most tested categories of concepts on the GMAT Quantitative section is Integer Properties   What are the “properties of integers”? Probably none of these are brand new to you —- in fact, you probably learned about all these in grade school.  Here’s a list. a) factors and...

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GMAT Question of the Day (Apr 16): Rate Problem and Critical Reasoning

By - Apr 16, 02:00 AM   Comments [0]

Math (DS) In the morning, John drove to his mother's house in the village at an average speed of 60 kmh. When he was going back to town in the evening, he drove more cautiously and his speed was lower. If John went the same distance...

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GMAT Question of the Day (Apr 13): Probability and Sentence Correction

By - Apr 13, 02:00 AM   Comments [0]

Math (DS) The bowl contains green and blue chips. What is the probability of drawing a blue chip in two successive trials if the chip drawn in the first trial is not returned to the bowl before the second trial? 1. The ratio of blue chips to...

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GMAT Question of the Day (Apr 10): Statistics and Critical Reasoning

By - Apr 10, 02:00 AM   Comments [0]

Math (DS) Set consists of odd integers divisible by 5. Is standard deviation of positive? 1. All members of are positive 2. consists of only one member Question Discussion & Explanation Correct Answer - B - (click and drag your mouse to see the answer) GMAT Daily...

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Sneak Peek: New GMAT Official Guide 13th Edition Math

By - Apr 2, 09:00 AM   Comments [0]

Advanced copies of the 13th edition of the GMAT Official Guide (turquoise cover) have been released. Changes in Problems Used The vast majority of the math questions in the 12th edition Official Guide appear verbatim but in a different order, than in the 13th edition.  Here's a...

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GMAT Question of the Day (Mar 29): Overlapping Sets and Sentence Correction

By - Mar 29, 02:00 AM   Comments [0]

Math (DS) What percent of the MIS students enrolled at Wisconsin University are female? 1. 5% of female students at Wisconsin University are studying MIS. 2. 12% of male students at Wisconsin University are studying MIS. Question Discussion & Explanation Correct Answer - E - (click and drag your mouse...

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Percent Change Problems on the GMAT

By - Mar 28, 09:00 AM   Comments [0]

This is, among other things, a case study of one of the harder Data Sufficiency problems in the OG.   Percents as Multipliers You can find several good tips on percent problems at this post.  The most relevant here is the idea of a percent as multiplier.  To change...

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GMAT Question of the Day (Mar 26): Arithmetic and Critical Reasoning

By - Mar 26, 02:00 AM   Comments [0]

Math (DS) and are positive integers and . What is the value of ? 1. 2. is a prime number Question Discussion & Explanation Correct Answer - C - (click and drag your mouse to see the answer) GMAT Daily Deals Knewton GMAT: Highly qualified instructors....

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GMAT Question of the Day (Mar 23): Arithmetic and Sentence Correction

By - Mar 23, 02:00 AM   Comments [0]

Math (DS) When is divided by 5, the remainder is 2. Is divisible by 7? 1. is a prime number 2. is a multiple of 10 Question Discussion & Explanation Correct Answer - E - (click and drag your mouse...

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Why Patience Pays off on Data Sufficiency Questions

By - Mar 21, 14:35 PM   Comments [6]

By Jen Rugani In the Nintendo game Super Mario Bros., Mario uses green warp pipes to travel around the world. Even though some of these pipes don’t lead anywhere, savvy players know that it’s wise to try to enter every single one, because every so often,...

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