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