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In a set of tasks where A must be completed before C, and C must be completed be

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Question: In a set of tasks where A must be completed before C, and C must be completed before D, which of the following sequences is invalid?

Options:

  1. A, C, D
  2. C, A, D
  3. A, D, C
  4. D, C, A

Correct Answer: C, A, D

Solution: 

The sequence C, A, D is invalid because C cannot be completed before A.

In a set of tasks where A must be completed before C, and C must be completed be

Practice Questions

Q1
In a set of tasks where A must be completed before C, and C must be completed before D, which of the following sequences is invalid?
  1. A, C, D
  2. C, A, D
  3. A, D, C
  4. D, C, A

Questions & Step-by-Step Solutions

In a set of tasks where A must be completed before C, and C must be completed before D, which of the following sequences is invalid?
  • Step 1: Identify the tasks involved: A, C, and D.
  • Step 2: Understand the order requirements: A must be completed before C, and C must be completed before D.
  • Step 3: Analyze the sequence C, A, D.
  • Step 4: Check if A is completed before C in this sequence. In C, A, D, C comes before A.
  • Step 5: Since A must be completed before C, the sequence C, A, D is invalid.
  • Task Dependency – Understanding the order in which tasks must be completed based on given constraints.
  • Sequence Validation – Identifying valid and invalid sequences based on task dependencies.
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