So many answers are wrong!
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I'm using a version of this book which has a different cover to the one advertised, so hopefully this means that there is a new version of this book, which has fixed all the errors mentioned in other reviews. But, while this book is good for practicing higher level questions, many of the solutions are at best dubious, or at worst blatantly wrong/contradictory - which make it very confusing to use. I've used other similar publications and not been aware of such poor accuracy. Not to be recommended.
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Annoying
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There are blatant mistakes in this book which make the whole process annoying and hindering, as you will always double check whether or not you are write or the book is write.
Furthermore, the explanations in the answers are rarely helpful. Explanations are provided for the most mundane questions, yet much tougher questions are answered without any explanation whatsoever.
Frustrating to say the least
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Sloppy editing makes this book a waste of money
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On the first page of this book there is a warning that 'occasional errors can occur in a book of this kind'. Only when you try and use this book seriously do you realise what an understatement that is.
The frequency of errors (from simple typos to equations that don't add up) prevent this book from being a worthwhile purchase. You wouldnt expect it in the real exam, and nor should you expect it from a recognised publisher.
With proper editing, this book might be more deserving of your money
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a good brainteaser
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If you want to have a taste of what real numerical tests are, this could well be your choice. It has very similar level of difficulty as that of the ones you'll face in reality. Try to practice everyday up to your test day, and don't skip the advice at the beginning of the book. A bit of warning though, some problems are literally confusing; a few questions have obviously wrong answers; as for the mock tests, some time allowance are more than necessary while others are extremely tight. So don't be put off, all you need is a balance between speed and accuracy. Finally, questions in mock test 4 have more than one answers(why didn't he tell us in advance??) Overall, I enjoyed it.
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Good overall
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This book is better that many comparable books on the market for graduate tests, however the graphs are small and very difficult to read and some of the answers to the questions are blatantly wrong (they were checked by several maths tutors) which can be very off putting. Overall, worth buying to practice for, but tread carefully!
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