Hello Yash,

   For Jee Mains preparation it depends on your understanding of the topic. I would suggest to try both subjective as well as objective. First do the subjective questions, it will help you in understanding the concpet and even it will make your concepts much stronger. Try objective questions with clock alongside you and give limited time to complete a fixed number of questions. This strategy will certainly help in exam. It will also give an idea about how much time you are taking in solving the problems. So, my suggestion is to try both subjective as well as objective.

  Good Luck !!!