General Science and Ability is the compulsory subject of each competitive exam . FPSC syllabus General Science and Ability previously known as Every Day Science Only is the compulsory papers out of three General Knowledge Papers. Federal Public Service Commission has revised the syllabus of CSS in 2016 so the Every Day Science was renamed with General Science and Ability with addition of basic Arithmetic and Analytical Reasoning and Probability in the General Knowledge Paper 1. Every Day Science paper is of total 100 Marks . 20 Marks are set for MCQs and 80 Marks paper is the Subjective Paper.