Statements: All clouds are vapors. No vapor is solid. Conclusions: I. No cloud is solid. II. All vapors are clouds.
Correct answer: A. Only I
- A. Only I
- B. Only II
- C. Both I and II
- D. Neither I nor II
Explanation
To determine which conclusions follow, let's analyze the statements:1. 'All clouds are vapors' means every cloud is included within the set of vapors.2. 'No vapor is solid' indicates that the sets of vapors and solids do not overlap.From these statements, Conclusion I, 'No cloud is solid,' logically follows because if clouds are a subset of vapors, and vapors do not overlap with solids, then clouds cannot overlap with solids either.Conclusion II, 'All vapors are clouds,' does not follow from the given statements because it is possible for some vapors to exist outside of clouds. The statement only establishes that all clouds are part of vapors, not vice versa.Thus, the correct answer is 'Only I.'
Last updated
About Logical Deductions
Logical deductions require conclusions to be drawn from stated facts, conditions and relationships without adding outside information. The work includes handling all, some and none statements, necessary and sufficient conditions, ordering restrictions, true or false conclusions, and the difference between what must be true and what could be true.
Practise Logical Deductions
200 free Logical Deductions MCQs from Analytical and Logical Reasoning, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Analytical and Logical Reasoning questions like this
Analytical and Logical Reasoning is on 24 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
(1) Mehwish is standing on a chair behind Abdullah (2) Abdullah is standing on the chair behind Bilal (3) Bilal is standing on the chair behind Mehwish. If the first two statements are correct, then the third one is:
A ball is a sphere. All spheres are round. Some round things are mesmerizing. Which of the following conclusions is NECESSARILY TRUE? Conclusions: I. All balls are mesmerizing. II. All round things are spheres. III. Some mesmerizing things are spheres.
A is the father of B. B is the sister of C. C is the daughter of D. Which statement must be true?
All cats are animals. Some animals are dogs. Which of the following is true?
All pens are pencils. All pencils are erasers. Which conclusion follows?