Question 1
5 tasks (A, B, C, D, E) are to be completed one after the other. The following conditions must be met:
- Task B must be performed immediately after Task E.
- Task C must be completed before Task A.
- Task D is neither the first nor the last task to be completed.
- Task C is performed exactly 2 positions after Task A.
Which task is scheduled in the third position?
Step-by-step solution (Deductive Logic):
1. Apply Consecutive Constraint: 'B immediately after E' -> (E, B)
2. Apply Before Constraint: 'C before A'
3. Apply Exclusion Constraint: 'D not first or last'
4. Apply Gap Constraints: 'C is 2 after A'
Final Sequence: C → D → A → E → B
Answer: The task in the third position is A.
Key Strategy: Use fixed pairs and gap constraints to anchor positions.
1. Apply Consecutive Constraint: 'B immediately after E' -> (E, B)
2. Apply Before Constraint: 'C before A'
3. Apply Exclusion Constraint: 'D not first or last'
4. Apply Gap Constraints: 'C is 2 after A'
Final Sequence: C → D → A → E → B
Answer: The task in the third position is A.
Key Strategy: Use fixed pairs and gap constraints to anchor positions.