| 1. If a and b are integers, is b even? (1)
3a + 4b is even. (2)
3a + 5b is even. 我选E，可答案是C，不懂是为什么？
2. When tossed, a certain coin has equal probability of landing on either side. If the coin is tossed 3 times, what is the probability that it will land on the same side each time? A.1/8 B. 1/4 C. 1/3 D.3/8 E.1/2
3. If xyz
≠ 0, is x (y + z) ≥ 0? (1) │y + z│ = │y│ + │z│ (2)
│x + y│ = │x│ + │y│ 4. What is the median number of employees assigned per project for the projects at Company Z? (1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. 这题我选E，可答案说是C，为什么？ If xyz
≠ 0, is x (y + z) ≥ 0? (1) │y + z│ = │y│ + │z│ (2)
│x + y│ = │x│ + │y│ 4. What is the median number of employees assigned per project for the projects at Company Z? (1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. 这题我选E，可答案说是C，为什么？ If xyz
≠ 0, is x (y + z) ≥ 0? (1) │y + z│ = │y│ + │z│ (2)
│x + y│ = │x│ + │y│ 4. What is the median number of employees assigned per project for the projects at Company Z? (1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. 这题我选E，可答案说是C，为什么？ When tossed, a certain coin has equal probability of landing on either side. If the coin is tossed 3 times, what is the probability that it will land on the same side each time? A.1/8 B. 1/4 C. 1/3 D.3/8 E.1/2
3. If xyz
≠ 0, is x (y + z) ≥ 0? (1) │y + z│ = │y│ + │z│ (2)
│x + y│ = │x│ + │y│ 4. What is the median number of employees assigned per project for the projects at Company Z? (1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. 这题我选E，可答案说是C，为什么？ If xyz
≠ 0, is x (y + z) ≥ 0? (1) │y + z│ = │y│ + │z│ (2)
│x + y│ = │x│ + │y│ 4. What is the median number of employees assigned per project for the projects at Company Z? (1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. 这题我选E，可答案说是C，为什么？ If xyz
≠ 0, is x (y + z) ≥ 0? (1) │y + z│ = │y│ + │z│ (2)
│x + y│ = │x│ + │y│ 4. What is the median number of employees assigned per project for the projects at Company Z? (1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. 这题我选E，可答案说是C，为什么？ When tossed, a certain coin has equal probability of landing on either side. If the coin is tossed 3 times, what is the probability that it will land on the same side each time? A.1/8 B. 1/4 C. 1/3 D.3/8 E.1/2
3. If xyz
≠ 0, is x (y + z) ≥ 0? (1) │y + z│ = │y│ + │z│ (2)
│x + y│ = │x│ + │y│ 4. What is the median number of employees assigned per project for the projects at Company Z? (1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. 这题我选E，可答案说是C，为什么？ If xyz
≠ 0, is x (y + z) ≥ 0? (1) │y + z│ = │y│ + │z│ (2)
│x + y│ = │x│ + │y│ 4. What is the median number of employees assigned per project for the projects at Company Z? (1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. 这题我选E，可答案说是C，为什么？ If xyz
≠ 0, is x (y + z) ≥ 0? (1) │y + z│ = │y│ + │z│ (2)
│x + y│ = │x│ + │y│ 4. What is the median number of employees assigned per project for the projects at Company Z? (1) 25 percent of the projects at Company Z have 4 or more employees assigned to each project. (2) 35 percent of the projects at Company Z have 2 or fewer employees assigned to each project. 这题我选E，可答案说是C，为什么？ | 
