Rather than trying to set this up with your own equation, try just using the answer choices. Using (A), for example: If the 1996 C:T ratio was 1:2, then cars revenue could have been 100, and trucks revenue could have been 200. We are told that cars revenue went down 11%, so the 1997 revenue was 89. ...

The phrase 1/3 more means more by a factor of 1/3. That is, take 1/3 of 2400 and add that result to 2400. Thus, x would have 2400 + 800 or 3200.

E is the better answer because D is over-stated. The author does not quite argue that prince fixing is "inevitable" or that it will occur in "any" industrialized society. A GMAT trick is to have a nearly correct answer choice that goes just a bit too far and then a very vague ans...

For any detail-oriented questions, remember that the anwer has to be directly supported by the text of the passage. Don't be creative, read between the lines or connect the dots. The answer will be, essentially, a paraphrase.

The triangle is a special right triangle (30-60-90). The ratios of the sides are x, x-root3 and 2x, respectively. Because the y value is 1, the little angle adjacent to the right angle is 30-degrees. That means the angle on the other side of the right angle is 60 degrees, forming another 30-60-90 tr...

The triangle is a special right triangle (30-60-90). The ratios of the sides are x, x-root3 and 2x, respectively. Because the y value is 1, the little angle adjacent to the right angle is 30-degrees. That means the angle on the other side of the right angle is 60 degrees, forming another 30-60-90 tr...