P, Q, R, S, T and U are seated around a circular table. R is seated two places to the right of Q. P is seated three places to the left of R. S is seated opposite U. If P and U now switch seats, which of the following must necessarily be true?

P, Q, R, S, T and U are seated around a circular table. R is seated two places to the right of Q. P is seated three places to the left of R. S is seated opposite U. If P and U now switch seats, which of the following must necessarily be true? Correct Answer T is immediately to the left of P or P is immediately to the right of Q

P, Q, R, S, T and U are seated around a circular table.

R is seated two places to the right of Q.

P is seated three places to the left of R.

S is seated opposite U.

According to the above information, there are two possibilities:

Case 1: The arrangement is as shown below.

[ alt="25 1" src="//storage.googleapis.com/tb-img/production/19/06/25_1.PNG" style="width: 191px; height: 212px;">

After switching the seats of P and U, the arrangement becomes

[ alt="25 2" src="//storage.googleapis.com/tb-img/production/19/06/25_2.PNG" style="width: 190px; height: 217px;">

P is immediately right of Q.

Case 2:

The arrangement is as shown below.

[ alt="25 3" src="//storage.googleapis.com/tb-img/production/19/06/25_3.PNG" style="width: 188px; height: 216px;">

After switching the seats of P and U, the arrangement becomes

[ alt="25 4" src="//storage.googleapis.com/tb-img/production/19/06/25_4.PNG" style="width: 192px; height: 214px;">

T is immediately to the left of P.

So, T is immediately to the left of P or P is immediately to the right of Q.

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