Hi all,
I need help from experienced GMAT takers.
I have 6 years of consulting experience and a GPA of 3.9
I took the GMAT two days ago and i scored 570 ( Q32, V36). I aim to get 700+ . Before i set for the GMAT, i used the following resources:
1- The OG
2- Princeton Review Cracking the GMAT
3- Kaplan 2006
I practiced for 1.5 months and solved almost 6 full practice CATS (3 from PR and 2 from Kaplan and 1 from PP).
I plan to re-take the GMAT in 1 month. I added to my preparation toolkit the following:
1- the two additional practice books of ETS (the green and purple one).
2- The SC Guide of Manhattan
3- Kaplan 800
4- I plan to take around 9 practice full tests (3 from Manhattan, 4 from Kaplan, 1 PR and 1 PP).
It is obvious that my weakness is the quant. I tried to buy the GMAT CLub challenges, but i was told by one of the GMAT Club team that i can't because i am Egyptian and the Pay Pal does not support payment from Egypt

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My first strategy is to focus on raising my quant score. If that failed, my alternative strategy will be to focus on getting a fascinating verbal score to make up for my weakness in quant.
Now my questions are:
1- Do you think that my new study plan is realistic? Can i make a 120+ point improvement in 1 month using the materials stated above?
2- What can i do further to improve my quant score? Is there any tough quant practice materials other than the GMAT Club Challenges?
3- I read about a book called Winners' Guide to GMAT Math that focuses only on difficult topics such as probability and permutations. This is its link:
https://www.my-gmat.com/WinnersGuideToGMATMath.html
Has anybody tried it? Is it a good idea to purchase it?
Many thanks for the excellent posts i read on this website