Hi RiyadhArifin237.
It sounds as if you are off to a good start in Reading Comprehension. Your current level appears to be in the low 30s in verbal score terms. That level matches what you said about getting all easy and some medium RC questions correct and having hit or miss performance on hard ones.
To improve your RC performance you could
- make sure you clearly understand exactly what type of answer each type of RC question is asking for.
- make sure you have a clear strategy for answering each type of RC question. By having a clear strategy, you improve the odds that you will answer questions efficiently and get them correct.
- improve execution by doing untimed practice and shooting for high accuracy and deep understanding. I've seen non-native speakers without strong English skills score in the upper 40s on GMAT verbal, and the reason they did so is that they executed well. Basically, they figured out how to get RC questions correct even though their English skills weren't great. So, improvement of execution is likely your biggest area of opportunity.
To that end, every time you miss an RC question, analyze what you needed to see and what you needed to do differently to get it correct. Then, seek to apply what you've learned when you answer the next question of that type.
Also, by doing practice questions untimed, you give yourself time to learn to achieve that perfect accuracy you're aiming for. Then, once you're achieving perfect accuracy, you can work the time per question down to test pace.
For some more RC tips, see this post on
GMAT Reading Comprehension Tips: Top 8 DOs and DON’Ts and this
video.