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Given the constraints that task X must be completed before task Y and task Z can

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Question: Given the constraints that task X must be completed before task Y and task Z cannot start until task Y is finished, which of the following is a valid sequence?

Options:

  1. Y, X, Z
  2. X, Y, Z
  3. Z, Y, X
  4. X, Z, Y

Correct Answer: X, Y, Z

Solution: 

The sequence X, Y, Z respects the constraints that X is before Y and Y is before Z.

Given the constraints that task X must be completed before task Y and task Z can

Practice Questions

Q1
Given the constraints that task X must be completed before task Y and task Z cannot start until task Y is finished, which of the following is a valid sequence?
  1. Y, X, Z
  2. X, Y, Z
  3. Z, Y, X
  4. X, Z, Y

Questions & Step-by-Step Solutions

Given the constraints that task X must be completed before task Y and task Z cannot start until task Y is finished, which of the following is a valid sequence?
  • Step 1: Identify the tasks involved: X, Y, and Z.
  • Step 2: Understand the constraints: Task X must be completed before task Y can start.
  • Step 3: Note the second constraint: Task Z cannot start until task Y is finished.
  • Step 4: Determine the order of tasks based on the constraints: Since X must be done before Y, and Y must be done before Z, the only valid sequence is X, Y, Z.
  • Step 5: Confirm that the sequence X, Y, Z meets both constraints: X is before Y, and Y is before Z.
  • Task Dependency – Understanding the order in which tasks must be completed based on given constraints.
  • Sequence Validation – Determining if a proposed sequence of tasks adheres to specified prerequisites.
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