Seven persons—P, Q, R, S, T, U, and V—visited the zoo on seven different days of the week starting from Monday to Sunday, but not necessarily in the same order. On which day did P visit the zoo?

Consider the following statements:

**Statement I:** Two persons visited between R and U. T visited two persons after U. V visited before P.

**Statement II:** Q visited before S who visited two persons after U. R visited on Monday. T visited after S. V visited before T. P visited before U.

**Statement III:** S visited either on Monday or on Sunday. Q visited before V. As many persons visited before Q as after T. V visited after R but before U.

Question

Seven persons—P, Q, R, S, T, U, and V—visited the zoo on seven different days of the week starting from Monday to Sunday, but not necessarily in the same order. On which day did P visit the zoo?

Consider the following statements:

**Statement I:** Two persons visited between R and U. T visited two persons after U. V visited before P.

**Statement II:** Q visited before S who visited two persons after U. R visited on Monday. T visited after S. V visited before T. P visited before U.

**Statement III:** S visited either on Monday or on Sunday. Q visited before V. As many persons visited before Q as after T. V visited after R but before U.

Accepted Answer

**Solution:**

1. From **Statement I**:
   - Two persons are between R and U.
   - T visited two persons after U.
   - V visited before P.

This gives a partial order but is not enough alone to fix exact days.

2. From **Statement III**:
   - S visited either on Monday or Sunday.
   - Q visited before V.
   - The number of persons before Q equals the number of persons after T.
   - V visited after R but before U.

3. Combining Statements I and III:
   - Since S is on Monday or Sunday and R must be on Monday (from Statement II, but we are not using it here), we check the arrangement.
   - Using the clues, the order of visits can be fixed as:

| Day       | Person |
   |-----------|---------|
   | Monday    | R       |
   | Tuesday   | Q       |
   | Wednesday | V       |
   | Thursday  | U       |
   | Friday    | P       |
   | Saturday  | T       |
   | Sunday    | S       |

4. Therefore, P visited the zoo on **Friday**.

**Answer:** The data given in both Statements I and III together are sufficient to answer the question.

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