L, M, N, O, P, Q, and R are seven employees working in the same company. They attend meetings in different departments: Administrative, Security, Finance, and HR, on different days from Monday to Sunday, but not necessarily in that order. Each employee attends only one meeting, and only one meeting is held each day. Two employees attend meetings in Administrative, Security, and HR departments each, while only one employee attends the Finance department meeting.

Given:
- L attends the meeting on Thursday.
- There are two persons between L and the person attending the HR department meeting.
- Three persons attend meetings between the person attending the Administrative department and the one attending the Finance department.
- The Administrative department meeting is held before the Finance department meeting.
- The Finance department meeting is not on Saturday.
- The number of persons between L and the Finance department attendee is the same as the number of persons between O and the Security department attendee.
- The Security department meeting is held before O's meeting.
- O does not attend the HR department meeting.
- Q attends the meeting immediately before L.
- O does not attend the meeting immediately after L.
- The number of persons between L and P is the same as the number of persons between L and R.
- P attends the meeting on a day before R.
- N attends the meeting in the Administrative department.
- R does not attend the Security department meeting.

Question: How many persons attend meetings between P and O?

Question

L, M, N, O, P, Q, and R are seven employees working in the same company. They attend meetings in different departments: Administrative, Security, Finance, and HR, on different days from Monday to Sunday, but not necessarily in that order. Each employee attends only one meeting, and only one meeting is held each day. Two employees attend meetings in Administrative, Security, and HR departments each, while only one employee attends the Finance department meeting.

Given:
- L attends the meeting on Thursday.
- There are two persons between L and the person attending the HR department meeting.
- Three persons attend meetings between the person attending the Administrative department and the one attending the Finance department.
- The Administrative department meeting is held before the Finance department meeting.
- The Finance department meeting is not on Saturday.
- The number of persons between L and the Finance department attendee is the same as the number of persons between O and the Security department attendee.
- The Security department meeting is held before O's meeting.
- O does not attend the HR department meeting.
- Q attends the meeting immediately before L.
- O does not attend the meeting immediately after L.
- The number of persons between L and P is the same as the number of persons between L and R.
- P attends the meeting on a day before R.
- N attends the meeting in the Administrative department.
- R does not attend the Security department meeting.

Question: How many persons attend meetings between P and O?

Accepted Answer

**Solution:**

1. Assign days to employees based on given clues:
   - L attends meeting on Thursday.
   - Q attends immediately before L, so Q is on Wednesday.

2. There are two persons between L (Thursday) and the HR attendee.
   - So HR attendee can be on Monday or Sunday.

3. N attends the Administrative department meeting.

4. Administrative meeting is before Finance meeting, with three persons between them.
   - Possible days for Administrative and Finance are Monday and Friday respectively.

5. Finance meeting is not on Saturday.

6. The number of persons between L and Finance attendee equals the number between O and Security attendee.

7. Security meeting is before O's meeting.

8. O does not attend HR meeting.

9. O does not attend the day immediately after L (so not Friday).

10. P attends before R, and the number of persons between L and P equals that between L and R.

By logically placing employees and departments on days:
- Monday: N (Administrative)
- Tuesday: P
- Wednesday: Q
- Thursday: L
- Friday: M (Finance)
- Saturday: R
- Sunday: O

Security attendees are M and R (since R is not in Security, M must be Security), so Security is on Friday or Saturday.

Counting persons between P (Tuesday) and O (Sunday):
- Days between Tuesday and Sunday are Wednesday, Thursday, Friday, Saturday = 4 persons.

**Answer:** 4

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