Can I improve 100 points in 4 weeks?

What are your strengths/weaknesses in the verbal portion? If you are struggling with sentence correction problems then you could easily improve in a short span but I think it might take more than a month to drastically become better in the RC and CR section.

Practice from OG and learn the concepts from an extra study book. My recommendation for the study book is either Manhattan GMAT verbal strategy guides Or Kaplan Verbal Workbook.

Ensure that you put in atleast 1-2 hours everyday practicing these questions. Try to internalize as much as possible. Internalization is a process by which you ask yourself what you learned from the question, and how you can avoid making the same mistake in the future.

Keep this and try contributing on the forums. This will help you more than anything else.

Arun

Thanks guys. I have the MGMAT SC and CR book, in addition to the CR Bible. I will continue to study from each book accordingly. My weaknesses are simply the SC and CR questions. By the time I got half way thru the verbal section on the day of the exam, my mind began to wonder and it got fatigued!