GRE Math Tip no.2: Study for 6 months
I usually recommend students to give at least 250 hours on each section. I feel sad to see to that people underestimate this exam so much. I regard it to be the most difficult exam in the world because it is testing 3 skills at a very high level. Give yourself at least 6 months before appearing for the exam and I think anything below that would only result in a failing mark.