can u answer fast please cuz i need to submit it after 2 hours.

(C) Based on information given in Table 2 and Figure 2, calculate the probability of finishing project in 270 days? [16 marks) Table 2: Project activities Activity 1 4 11 12 50 0.1 25 a (days) 20 20 30 25 30 65 50 50 10 20 $ 0.12 m (days) 30 0.1 30 20 25 10 0.1 25 b (days) 40 80 100 100 35 0.1 35 30 60 12 0.1 60 2 5 - 10 11 1 3 - 12 Figure 2: Network diagram for Table 2