Practice exam: 510 - Need 600 in ideally 1 month

For 600 you should be around Q45, V30 on a safer side. As you can see both sections need improvement, Verbal being more difficult here, you should approach ahead in an structured manner. Well finishing OG's is good but without a good hold on concepts, its not advisable. OR
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Hi StijnO,

GMAC has publicly stated that the Official Score that you earn on Test Day is within +/- 30 points of actual ability. Assuming a similar 'swing' in how your CATs function, your 2 CAT score results show that you essentially performed the same each time (about 500 +/- a few points). You handle certain aspects of the GMAT consistently well, but you also make certain consistent mistakes. Raising a 500 to the point that you can consistently score 600+ will likely require at least another 2 months of consistent, guided study - and you'll have to make significant improvements to how you handle BOTH the Quant and Verbal sections. As such, you will likely need to push back your planned Test Date. Thankfully, the GMAT is a consistent, predictable Exam, so you CAN train to score at a higher level.

Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on how you've been studying and your goals:

1) What study materials do you have access to besides the Official Guides?
2) When you say you "need" a 600, what does that mean exactly? Is a 600 the 'minimum Score' that you need to apply? Will that Score guarantee you entry into a particular Program?
3) Which Schools are you planning to apply to and what application deadlines are you facing?
4) Going forward, how many hours do you think you can consistently study each week?

GMAT assassins aren't born, they're made,
Rich

HI StinjnO,

I’m glad you reached out, and I’m happy to help. Regarding how to move forward, as has been said, I think Target Test Prep would be perfect for you. I’m sure you’ve seen on GMAT Club that many students have used us to improve their quant scores, but we recently launched a pre-beta version of our verbal course. As a result, we now have you covered for both sides of the exam, and even in the pre-beta version, the TTP GMAT Verbal Course is a powerful resource. It includes an in-depth examination of CR concepts and strategies and a comprehensive treatment of SC that non-native speakers of English are finding understandable and effective. The bottom line is if you can follow our study plan and complete the course, there is no reason why you can’t hit your GMAT score goal.

We offer a full-access, 5-day trial, so you should give the course a shot. If you have any questions, feel free to reach out to me directly.
Good luck!

Yes official guide 2021 will be the BEST source to improve your score. Btw read all answer explanations of each verbal question (why answers are wrong or right), no matter whether you answer that question correctly or not. Good luck

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The combination of TTP and OG will get you to a 600 and beyond.