Salam,
Bro just try to keep your notes perfect.. Some friends told that the criteria of FPSC for the exams of A.D ASF would be :
English = 15 questions
Islamiat = 15
Mathematics = 15
General Knowledge = 40
Current Affairs = 15
so bro try to prepare yourself in every subject.
In Mathematics you can go with simple numbers, L.C.M & H.C.F, Ratio.
In English: Same meaning words, Opposite meaning word, Grammar, Articles.
General Knowledge: You can get G.K Book at Your own Wish and on Your choice, as well as for Current Affairs.