The maths for such bank exams is the level of class 10th only. You can easily score in this area you just require little patience and hardwork. You must clear all your concepts and work on them only then you can easily carry the maths section.

You can refer the following books to prepare mathematics for BANK

>Mathematics by

• O.P. Tandon
• O.P. Agarwal
• R.S.Agarwal

>N.C.E.R.T.Books [From Class 6 to Class 10]

>Reasoning by

• R.S.Agarwal [Verbal and nonverval ]
• A Text book on Data Interpretation and Logical reasoning by Arun Sharma

>Marksman Reasoning

>English Grammar by

• Wrein and Martin
• Essential of Grammar by Oxford Publication

>Upkars Publications Bank Probationay Oficer by Khanna

>Ever Ltest General Knowledge by Verma and khanna

You have to go through all the topics.

Good luck!!