Four departments — P, Q, R and S — are scheduled from Monday to Thursday, one department each day. P must be scheduled before R, cannot be scheduled on Monday. S must be scheduled immediately after Q. Which schedule is possible?
- P, Q, S, R
- R, P, Q, S
- Q, S, P, R
- None of these
Explanation
Let's check the 2 rules:
1. P before R
2. P not on Monday
3. S immediately after Q
Given order is Mon, Tue, Wed, Thu
Q, S, P, R =
Q Mon, S Tue = S immediately after Q = OK
P Wed, R Thu = P before R = OK
P is Wed, not Monday = OK
Answer is Q, S, P, R
Monday: Q
Tuesday: S
Wednesday: P
Thursday: R
Last verified on 17-10-2026
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