Edexcel D1 2013 June — Question 6

Exam BoardEdexcel
ModuleD1 (Decision Mathematics 1)
Year2013
SessionJune
TopicCritical Path Analysis
6.
ActivityImmediately preceding activities
A-
B-
CA
DA
EB
FC D
GD
HF G
IH
JH
KI J
  1. Draw the activity network described in the precedence table, using activity on arc and exactly two dummies.
    (5)
  2. Explain why each of the two dummies is necessary.
    (2)
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