GMAT Question of the Day – Problem Solving – Overlapping Sets/Picking Numbers At a certain rail-yard each train is either a freight train or a commuter train and either runs on the southern line or the northern line. 20% of the commuter trains run on the southern line and the number of freight trains that […]
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GMAT Question of the Day – Data Sufficiency – Absolute Value If x is an integer is y < 2? (1) |x| – x = y (2) x < |x| [spoiler]C.[/spoiler] GMAT Question of the Day Solution For GMAT absolute value questions think about the signs (+, -). What happens when the underlying variable is
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GMAT Question of the Day – Problem Solving – Exponents A. B. C. D. E. GMAT Question of the Day Solution (scroll down if you only want the correct answer) This question of the day presents an exponents work-out. First rule of GMAT: Know your fundamentals! Do you really know your exponent rules? The GMAT
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GMAT Question of the Day – Problem Solving – Absolute Value If 2x – 7 is not equal to zero, which of the following must be true: I. x < 7/2 II. (2x)^2 < 49 III. |x| * x < 0 A. I B. II C. I and II D. II and III E. I, II,
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GMAT Question of the Day – Problem Solving – Combinatorics/Number Properties A certain company tags each of its products with an 8 digit alpha numeric code whose first 4 digits are either a digit 0-9 or a letter of the alphabet and whose last 4 digits represent the year of manufacture (for example, the last
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