Old books available in Karnataka

See i had taken akash online tutoring so they have given me books where some i have used and many not even touched now I'm in my degree and i have no use of these books also i had taken a long term and have that books to but in those i have used them but still you can read them study them i cost 2000 or all of them they might be around 100 plus books you please take them and use it for your exams

Discrete and combinatorial mathematics 5th edition An applied introduction

Neet dropper's study material : It contains detailed notes of each chapter along with short notes at end .It also contains topic wise mcq's with analysed solution. It includes physics , chemistry and biology according NCERT and it is well usefull for NEET exam . It is published by Physics Wallah

It is a lead english book