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Introduction to Statistics

The network d...

Question

The network diagram for a project is shown below. The duration of activities is indicated.

The free float for activity 3 - 4 is

A

7

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B

6

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C

1

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D

0

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Solution

The correct option is C 1

For activity 3 - 4
duration 3

EST = 12 EFT = 12 + 3 = 15
LST = 22 - 3 = 19 LFT = 22
Total float = LST - EST = 19 - 12 = 7
Free float = 7 - (22 - 16) = 7 - 6 = 1

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