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Question: In a row of five buildings - P, Q, R, S and T, which building is in the middle? Statements: Buildings S and Q are at the two extreme ends of the row. Building ,T is to the right of building R.

Correct Answer: Neither I nor II is sufficient

Explanation:

From I, we have the order : S, -, -, -, Q. From II, we have the order : R, T. Combining the above two, we get two possible orders : S, R, T, P, Q or S, P, R, T, Q. Thus, either T or R is in the middle.

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