Great questions!
1) What is the average preparation time for the exam considering that someone is working. Please note that I am from a Math background
Here is a great article you can check out:How Long Should I Study for the GRE?2) Secondly, what are the top resources to prepare for the same. I would like to have some material that is exhaustive and does not make me wander around for extra practice or something.
Have you checked out course reviews here on GRE Prep Club?3)Thirdly, and most importantly, where could I find mock exams for the GRE apart from the two practice tests provided by the ETS? Please note that I would like to have mocks that simulate the actual GRE very well or may simulate them closely. I had a bad experience with the free mocks of
Kaplan as they were easy, and hence they were not indicative of the performance as they did not simulate the actual exam one might encounter.
I would also take the PP+ practice exams, although you have to pay for those.