I am retaking my GMAT as I didn't score well in my first attempt (my prep was not consistent due to several work and personal commitments coming in the way) but I am determined to devote some serious time to study further, 3 months give or take. Question is about the materials I have currently and whether they would suffice in my preparation.
I have
the Official Guide 13th edition and its associated Quant & Verbal supplements from 2012 (given by a friend a year or so ago), the entire
Manhattan GMAT strategy set and the Foundations of Quat by
Manhattan Prep. I don't have any online prep packages, but I do have the GMATPrep software for practice that I did not utilize during my first attempt. I used the 13th edition for practice nearly 4 times in my preparation repeatedly and the Manhtattan series.
Is the above list sufficient or should I invest in the latest
Official Guide 2018 books? Or would you recommend
Magoosh and other online prep tools? I believe my pacing and ability to tackle data sufficiency questions is weak and so is Sentence Correction.
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