Question
Four presentations P, Q, R, and S are scheduled one per hour. P is before Q, R is after Q, and S is before P. Which order is forced?
Select an option. Your answer will be checked instantly.
Correct Answer: D. S, P, Q, R
Explanation:
The constraints form a single chain S before P before Q before R.
Only S, P, Q, R satisfies all three conditions.
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