SHL are one of the most widely used firms for the tests. On their website you can practice sample questions. Also, if you visit the careers section of the big four and top IBs websites you will find practice questions. I can't remember if the paper Analysys used was SHL or not.I found the key to these papers is practice, practice, practice. You get used to the feel of the question. If you have 10 days, I would use these wisely. Like Anon suggests - it will depend on your numerical ability.Alternatively, Ovum also do telecoms consultancy ;)