OG13 PS - Question Quality

Hi vingmat001,

You can pick and choose which GMAT question from which to study -- based on % of others who got that question correct: https://www.gmatpill.com/gmat-practice-t ... -questions

In general, the more difficult topics will be mixture / probability/combinatorics / word problem - type questions.

It's true that most of the questions in the OG are below 700 level, but the OG is still your best resource. In order to break 700, you need to be solid on everything below that level. Even if you get a question right, go back through and see how you might have solved it in a more reliable and efficient manner. If you got it right in 2 minutes, could you have gotten it right sooner? If you made an educated guess, could you have answered more confidently with another method? If you did all the algebra, could you have picked numbers or estimated and still gotten down to one answer? Sure, you can focus on harder material, such as our Advanced GMAT Quant book, but spend most of your time mastering the OG!