How much marks require

There are 4 modules in ICSI Professional Exam.  Each module has 2 papers with min. 100 marks each. I secured exemption in 2nd module "Paper 4" of CS Professional exam with 61 marks. My query is that.........Minimum how many marks require to pass the whole group...........? Should I require 40 marks or 50 marks to secure in passing 3rd paper of CS Prof. exam ? i.e., 40 + 61 = 101 marks or, 50 + 61 = 111 marks Please guide me.