I have referred Quantitative Aptitude for Competitive Examinations book many times.
It is an damm good book I have ever referred.Everything is given absolutely in easier way.
We dont need to go for same topic again as easy as it is.All the topics are covered in it neatly.We can use it for any entrance exams based on on Quantitative Aptitude.
I have cleared many exams using this book. I will suggest if you are going to buy any such kind of book you must buy this.