    Sentence L: It's only 1 month lett for my 12th (PCM)  CBSE board exams 2017 and | didn’t Study at all. How  can! get 80% ? Any tips guys?    Sentence 2: With just 1 month to go, | have  completed my Maths syllabus but haven't studied  Physics & Chemistry at all. How do I get over 80% in  12 CBSE Boards?