Well, this is a very frequently asked question and most studnts op for onlin studies as textbooks are boring . In this regard , the best websie to refer is . 

This site is free of cost to use . You can read articles and chapter wise explanations , important questions , Revision Notes and much more . They also give good motivational artcles on their site . It is a must try . 

All the best for your exams !

Prepare withHSC Boards Wiki !

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