FREE GMA Logical Reasoning Questions and Answers
Which of the following statements is logically inconsistent with the others?
1. All dogs bark.
2. Some dogs are quiet.
3. Some dogs do not bark.
4. No dogs are quiet.
Correct!
Wrong!
Statement 4 contradicts the possibility of quiet dogs, as it asserts that no dogs are quiet. This is inconsistent with the first and second statements, which imply the existence of quiet dogs.
Which of the following is the best conclusion based on the statements?
1. All cars are vehicles.
2. Some cars are electric.
Correct!
Wrong!
Since all cars are vehicles and some cars are electric, it follows that some vehicles are electric.
Which of the following logically completes the sequence?
2, 4, 8, 16, __?
Correct!
Wrong!
The pattern is that each number is doubled.
2 × 2 = 4, 4 × 2 = 8, 8 × 2 = 16, so 16 × 2 = 32.
If all roses are flowers and some flowers fade quickly, which of the following statements must be true?
Correct!
Wrong!
The statement "all roses are flowers" doesn't imply that all flowers are roses. Therefore, it must be true that some flowers are not roses.
If the first two statements are true, is the final statement true?
1. All students passed the test.
2. Mary is a student.
3. Mary passed the test.
Correct!
Wrong!
Since all students passed the test and Mary is a student, it follows that Mary passed the test.