Most Important Topics Wise Full Solved Mathematics Study Material in this eBook. All RRB NTPC 2021 CBT-1, ALP, Group D, SSC Exam Most Selection Previous Year Fully Solved Questions for RRB NTPC Exam 2024-25. All Mathematics Sections covered in this eBook like :- Number System, LCM & HCF, Ratio & Proportion, Average, Percentage, Profit & Loss, Discount, SI & CI, Time & Work, Time & Distance, Mensuration, Trigonometry, Geometry, etc.