Hi shivas88,
Many Test Takers spend too much time worrying about the 'implied level' of the practice questions that they're working on, when they should actually be working on other things (Tactics, pattern-matching skills, developing proper Test Taking habits, etc.). It would help to know a bit more about how you've been studying and your goals:
Studies:
1) How long have you studied?
2) What materials have you used?
3) How have you scored on each of your CATs (including the Quant and Verbal Scaled Scores)?
Goals:
4) What is your goal score?
5) When are you planning to take the GMAT?
6) When are you planning to apply to Business School?
7) What Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich