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Analytical Puzzles Hard 2 min

A meeting has four presentations: P, Q, R and S. P must occur before Q. R must occur immediately after S. Q cannot be first. Which sequence is valid?

Hint
Try placing the S-R pair first.

Answer

S-R-P-Q.

Explanation

S-R satisfies the immediate requirement, P precedes Q, and Q is not first.

Step-by-Step Solution

S → R → P → Q satisfies every condition.
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