Industrial Engineering and Production Management
The basic difference between PERT and CPM is that

Critical path is determined in PERT only
PERT deals with events and CPM with activities
Guessed times are used in PERT and evaluated times in CPM
Costs are considered on CPM only and not in PERT

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Industrial Engineering and Production Management
Pick up the incorrect statement from the following. A critical ratio scheduling

Adjusts automatically changes in activity progress
Determines the status of each activity
All of the these
Establishes the relative priorities among various activities on a common basis

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