Activity R on a CPM Network Has Predecessors M and N

question 110

Multiple Choice

Activity R on a CPM network has predecessors M and N, and has successor S. R has duration 5. N's late finish is 18, while M's is 20. S's late start is 14. Which of the following is definitely true?

• A) R is critical and has zero slack.
• B) R has no slack but is not critical.
• C) The set of given times cannot all be possible.
• D) N is a critical activity.
• E) S is a critical activity.

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Definitions:

Clay

A natural, earthy material composed of minerals with fine particles, used in making pottery, bricks, and sculptures.

Conservation

In psychology, it's the understanding that quantities remain the same even when they are arranged or shaped differently, a concept developed by Jean Piaget.

Irreversibility

The inability to mentally reverse a sequence of events or logical operations back to the starting point.

Centration

A cognitive limitation in early childhood development, where a child focuses on one aspect of a situation or object, ignoring other relevant aspects.