threadstarter. you are right and it makes sense to practice for the tests. especilly if you want to try and make sure you are one of the final candidates.
the thing some people don't realise with the numerical and verbal aptitude tests is that they are often used by employers to "weed out" candidates in the initial round. So even if you are a very skilled applicant, just because you failed the tests on hurdle one, you might not get to the second round to prove yourself in the interviews for example. It is not always like this but often it unfortunately is. By practising for the tests you at least help yourself in getting past the first step. Just go online and do some serious practice on sites like: