Free Logical Deductions MCQs with Answers
240 Logical Deductions MCQs from Analytical and Logical Reasoning, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
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.
Last updated
Read the Logical Deductions notesFree MDCAT chapter notes with key terms240 questions · page 8 of 12
- A. Only II and III
- B. Only I
- C. Only III
- D. None
Explanation: To solve this question, we need to analyze the logical deductions based on the given statements:1. Statement: No bottle is glass.
Correct answer: Only II and III- A. Only I
- B. Only II
- C. Both
- D. None
Explanation: To solve this, analyze the logical relationships:Statements: 'Some men are strong' and 'All strong are brave.'Conclusion I: 'Some brave…
Correct answer: Only I- A. None follow
- B. Only III
- C. Only I
- D. I and III
Explanation: The correct answer is 'None follow'. Conclusion I suggests a direct relationship between chocolates and unhealthy items, which is not…
Correct answer: None follow- A. Only I
- B. Only II
- C. Both
- D. None
Explanation: The statements provided are:All buses are vehicles.Some vehicles are not cars.Conclusion I: 'Some buses are cars' is not supported by the…
Correct answer: Only II- A. II and III
- B. Only III
- C. Only II
- D. None
Explanation: The correct answer is Option A: II and III. Based on the statements, 'No fish is a bird' and 'All birds are animals,' we can deduce the…
Correct answer: II and III- A. None follow
- B. Only II
- C. Only I
- D. Both
Explanation: The statements provided are 'All furniture are wooden' and 'No table is furniture.' From these, we can infer that since no table is…
Correct answer: None follow- A. Only II
- B. Only I
- C. Both I and II
- D. None
Explanation: In logical deduction, you must evaluate if each conclusion logically follows from the given statements.
Correct answer: Only II- A. Only I
- B. Both I and II
- C. Only II
- D. None
Explanation: To determine the valid conclusions, analyze the given relationships: 'All fruits are natural' implies that fruits fall entirely within the…
Correct answer: Only I- A. Only II
- B. Only I
- C. Both
- D. None
Explanation: To solve this question, evaluate each conclusion separately based on the given statements.
Correct answer: Only II- A. Both I and II follow
- B. Only conclusion I follows
- C. Only conclusion II follows
- D. Neither I nor II follows
Explanation: To evaluate the conclusions, we can analyze the given statements:1. All dogs are loyal.2.
Correct answer: Both I and II follow- A. Only II
- B. Both
- C. Only I
- D. None
Explanation: The key to solving this problem is understanding what can be logically deduced from the given statements.
Correct answer: Only II- A. Only I
- B. Only II
- C. Both
- D. None
Explanation: Conclusion I: 'No building is a living being.' This conclusion cannot be derived from the given statements.
Correct answer: Only II- A. None follow
- B. Only I
- C. Only II
- D. Both
Explanation: The correct answer is: None follow. Conclusion I ('Some bananas are ripe') suggests that there is an overlap between bananas and ripe…
Correct answer: None follow- A. None of the conclusions follow
- B. Only Conclusion II follows
- C. Only Conclusion I follows
- D. Both conclusions follow
Explanation: To solve this problem, we need to analyze the given statements: 'Some keys are locks' and 'Some locks are chains.' Conclusion I suggests…
Correct answer: None of the conclusions follow- A. Only III
- B. Only II
- C. Only I and II
- D. None
Explanation: To solve this problem, use logical deduction and Venn diagrams to analyze the relationships between the categories defined in the…
Correct answer: Only III- A. I and III
- B. Only III
- C. Only II
- D. All
Explanation: The correct answer is Option A: I and III. From the statements, 'Some poets are authors' and 'All authors are philosophers,' we can deduce…
Correct answer: I and III- A. Only III
- B. Only II
- C. None
- D. I and III
Explanation: To determine which conclusions logically follow from the given statements, consider the relationships:1.
Correct answer: Only III- 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…
Correct answer: Only I- A. Only I
- B. Only II
- C. Neither
- D. Both
Explanation: In logical deduction, we examine whether the conclusions necessarily follow from the given statements.
Correct answer: Neither- A. Only I
- B. Only II
- C. Both
- D. None
Explanation: The correct answer is Option B: Only II. The statements 'All engineers are graduates' and 'Some graduates are scientists' suggest that…
Correct answer: Only II