Pearson Guide To Logical Reasoning & Data Int Cat

This is the worst book i have ever come across for CAT preparation. I wonder how such a reputed firm like Pearson print this book that has got so many errors in it. the book is full of grammatical errors and in many instances there are such silly errors similar to the order as in a equation or inequality there is no = or > or < sign. one wonders how come this question is framed. This is not all, there are so many similar and even horrifying questions that i don't feel like writing out here. after spending hours in solving unsuccessfully one sort of questions, one finds that the data given in the questions don't match with their respective solutions. with lots of efforts i have reached pages 50 of some 500 pages and till date i have found at least 5 problems with inconsistent style of questioning. after going through this book one would certainly either loose his patience or confidence.