Dear student,

Greetings.

Please mention for which exam you are preparing that will be more convinient for me to answer you.

Although, I will say that NCERT is the base book for any exam as it contains the fundamentals and basics which helps a candidate to understand accurately. For better preparations for any exam, it is suggested that first you should try to solve the examples of NCERT, then you must go for the exercise. After completing NCERT, it will be more easy to solve other guides and other sample papers, That will only improve your knowledge and practice. You can solve both the books for best solutions.