Friends, the thing is those pages are secret even if I post the link here, Facebook will not lead you to those pages because of their status as "secret". It is by the name of "INSPECTOR-Inland Revenue Services". Many of the members there are preparing too hard and they are well-versed in tax laws. And yes calculations can likely be a part of MCQs. Because of tough competition with thousands or maybe over a lac of people having applied for the posts, expect anything. My personal advice is "do not rely on this Ilmi Book or that Dogger etc. -- I do not even know their names". Do a thorough study of taxation laws and their practical implications, as real life situations and knowledge questions could be posed to check your level of competency in taxation.