I feel sure the variety pack does say that it is a repeat of the disciplines. This website has a note explaining the situation before you buy....
NferNelson have created around 16 papers for public sale, 4 in each discipline: Mathematics, English, Verbal Reasoning (VR) & Non-Verbal Reasoning (NVR). Multiple Choice and Standard format papers contain the same questions (but the way they are answered is obviously different, one has choices A,B,C,D,E and the other has a space for inserting the answer). Variety Packs take one paper from each discipline e.g. 1 English, 1 Maths, 1 VR and 1 NVR selected from the same 16. Standard Variety Packs contain just 3 papers: I Maths, 1 VR and 1 NVR. So please be careful to avoid duplication when making your purchases.
Please note: Thus, for instance, to get all NFER multiple-choice 16 papers you can either purchase the 4 multiple choice packs by subject or Variety Pack 1-4 multiple choice.