Good that you have 40 days and more importantly, you are away from work.. I assume you can study 8-10 hours everyday...perfect platform to get a great score!!
Verbal: OG 11 - work out all questions and understand the explanations... the logic and thinking-pattern are very important.. Use Manhattan SCs and Kaplan for CR.. for RC, OG 11 is good enough - has passages from a number of topics... you may also work a few passages from ARCO GRE...
Quant: I strongly recommend 4GMAT's math books.. Since you have time, you can get their math books mailed to you (you should get them in a week)...
https://www.4gmat.com/prep_courses/math_ ... rial.shtml
Has a number of short-cuts, you will save time.. I finished math with 15 min to spare... My overall score is in the 98th percentile...
Practice tests (online/computer based): Work out only Gprep, Powerprep and Manhattan tests..Avoid other tests as they are too easy or too difficult.
pl. drop me a line at:
[email protected] for some good verbal materials....