Useful Books for PSC,UPSC,Bank Exams, GATE,CSAT,GMAT, Interview Aptitude test etc.
Quantitative Aptitude for Competitive Examinations by Agarwal
The book is known to be well-equipped in preparing you for all quantitative aptitude tests, especially the Institute of Banking Personnel Selection Exam.
The book entails explanations, examples as well as fully solved exercises.
PSC Question Bank
