gauz
i have many options to practise from - E-GMAT Scholarium\
GMAT Club tests\Practise via Manhattan\Veritas tests.. not sure which will be most effective in this situation (I do not want to spend energy with very hard questions which would never turn up in exam - just need some real time practise). I have also almost covered the GMAT Question pack :/
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My target score is q49 v 42 750
Well, I got exactly "q49 v42 750"...
During the last stretch of my preparation, the GMATclub question bank helped me a lot. I selected only questions with higher difficulty level, in groups of 10 questions each. The GMATclub question bank is a great way to focus on the hardcore questions you don't see very much in the official guide, for example.
Ok, you said you do not want to "spend energy with very hard questions which would never turn up in exam". But if you want to ace the quant section, that's exactly the kind of question you must study: hard ones. Ok, not all of them will turn up in exam. But if a couple of them turn up, and you're able to answer them because you studied quizzes, it will be worth a few important points in your score.
Even if most hardcore questions do not show up in exam, the questions from GMATclub help you to understand GMAT way of thinking, and learn about traps, which are also important aspects of taking the GMAT.
It will help you during the test if you get used to hardcore questions. When a very hard question shows up during the GMAT, you see it just as another question, instead of getting anxious or desperate.
And it also helped me to identify which types of hardocore questions I should not waste time with during the real exam. And that's an important skill too.