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If task Q must be completed before task R and task S can be done at any time, wh

Practice Questions

Q1
If task Q must be completed before task R and task S can be done at any time, which of the following is a valid sequence?
  1. R, Q, S
  2. Q, S, R
  3. S, R, Q
  4. Q, R, S

Questions & Step-by-Step Solutions

If task Q must be completed before task R and task S can be done at any time, which of the following is a valid sequence?
  • Step 1: Identify the tasks involved: Q, R, and S.
  • Step 2: Understand the requirement: Task Q must be completed before task R.
  • Step 3: Note that task S can be done at any time, meaning it has no specific order.
  • Step 4: Create a sequence that respects the requirement: Start with Q, then R, and place S anywhere.
  • Step 5: Verify the sequence: In the sequence Q, R, S, Q is before R, and S is included, making it valid.
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