There is no universally-applied minimum score on either verbal or numeric reasoning tests. Such tests are generally used as part of an overall process of assessment. That much said, having been involved for many yars in graduate recruitement into industry, we found a high correlation with ability to do these tests and numerical dexterity later demonstrated on the job.
Whilst it is right and proper that you get extra time to do things for academic examinations, this doesn't really translate into something you can expect in commerce or industry where, if one wishes to be a high-flyer, one has to read and digest information fast.