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Dear Student,
Greetings.
In JEE Mains exam, 80% of the questions are from NCERT exemplars and the remaining 20% are the questions from other books. As a student, that 20% questions will also matter and will decide to get a perfect score in the exams because NCERT will only provide you the basic knowledge but to enhance your speed and accuracy, solving other books will be more helpful. You can visit our Careers 360 link to know about the detailed information and the name of the books you should start your preparations with.
https://engineering.careers360.com/articles/best-books-for-jee-main-2019
Wish you all the best!
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