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Passage 6 Two male singers, P and S; two female singers, R and V; two male comedians, T and W; and two female comedians, Q and U, are the eight entertainers who are to perform at the Stuart heater on a certain night. Each entertainer is to perform alone and only once that night. The entertainers may perform in any order that conforms to the following restrictions: The performances by singers and the performances by comedians must alternate throughout the evening. The first performance that evening must be by a female entertainer, and the second performance by a male entertainer. The final performance must be by a male singer. 1. Which of the following could be the last of the entertainers to perform? R S T V W 2. Which of the following could be the first of the entertainers to perform? P R U V W 3. If R is to perform fourth, which of the following must perform sixth? P S U V W 4. If U is to perform seventh, which of the following must perform first? Q R S T V 5. If P is to perform eighth, which of the following must perform second? R S T V W 6. If T is to perform third, W must perform first or fifth second or fifth | 
