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Option 3 : 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.