The Official Guide for GMAT Quantitative Review, 2nd Edition is out!
There are 44 new Problem Solving and 31 new Data Sufficiency Questions (a total of 75 new questions out of 300).
List of Changes:
The main issue with the first edition was low question difficulty. This edition addresses the issue slightly, but as you can see, not by much. One issue that was fixed is the total number of questions. The first edition claimed (just like this one) to have 300 questions, but only had 294 - how can you make that mistake in the Official Guide for Quantitative Review? The question split is 176 for PS and 124 for DS.
As to content, changes, it is interesting to see many of the tables and data-interpretation questions go and addition of sequence questions. Also, DS lost many of its arithmetic questions, which were replaced by Word Problems.
Overall - pretty much the same book - would have loved to see more new questions, but $12 for 28 new hard and 29 medium REAL questions is not bad. By the way, the first edition is on sale right now The Official Guide for GMAT Quantitative Review for $6.78!
Here is the full list of new questions for reference: