17. Situations in network diagram A must finish before either B or C can start both A and B must finish before C can start both A and C must finish before either of B or D can start A must finish before B can start both A and C must finish before D can start A B C A B C D C B A A C B D Dummy
38. Practice Exercise 6 12 d, e j 4 6 g i 8 9 f h 5 17 a g 9 15 a f 11 9 c e 7 13 b d 5 5 - c 3 8 - b 2 6 - a Cost in (000) Rs Duration in Weeks Pre - Activity Activities