# GMAT Answers of the Week: Scary Edition

November 21, 2013 by

Did our latest GMAT Questions of the Week scare you into studying? We hope so! We offered you two questions, and today we have the answers and explanations we know you’re dying to read. So without further ad0, here are the GMAT Answers of the Week: Scary Edition…Boo! Want to tackle more questions like these? Take a free sample class on Tuesday, November 26th at 9pm, Saturday, December 7th at 2pm, Saturday , December 21st at 5pm

The First Question:

Researchers have found that, on average one American should be struck by lightning every 13 days.

• A. one American should be struck by lightning every 13 days
• B. an American should be struck by lightning once in every 13 days
• C. lightning will strike some American once every 13 days
• D. every 13 days an American is struck by lightning
• E. every 13 days an American should be struck by

# GMAT Problem Dissection: Probability Part 2

July 25, 2013 by

Alright, you’ve been studying the GMAT basics. You understand what is really being tested along with the problem types, methods, and strategies. You’ve even memorized all the basic formulas and taken a dive into some of the more challenging content areas. So what’s next? That’s simple, practice…over and over and over again. If you do this, you are likely to start hitting tough probability questions at some point. Along with combinations and permutations, this is a content area that the GMAT can use to up the degree of difficulty quite a bit. So let’s take a look at a tough probability question and break it down:

A fair coin is tossed five times. What is the probability that it lands heads up at least twice?

(A) 1/16

(B) 5/16

(C) 2/5

(D) 13/16

(E) 27/32

The key to solving this is the phrase ‘at least twice.’ This means that … Read full post

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