TestUstad

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 terms

240 questions · page 7 of 12

121. Statements: All humans are mammals. Some mammals are not animals. Conclusions: I. Some humans are not animals. II. All animals are mammals. III. All humans are animals.

  • A. Only I follows
  • B. Only II follows
  • C. Only III follows
  • D. None of the conclusions follow

Explanation: The given statements are: 'All humans are mammals' and 'Some mammals are not animals.' These statements do not establish a direct…

Read the full explanation →
Correct answer: None of the conclusions follow

122. Statements: Some players are athletes. All athletes are winners. Conclusions: I. Some players are winners. II. All players are winners. III. Some winners are players.

  • A. Only I
  • B. Only III
  • C. I and III
  • D. All follow

Explanation: To solve this, analyze the logical flow: The statement 'Some players are athletes' means there's an overlap between players and athletes.

Read the full explanation →
Correct answer: I and III

123. Statements: All cups are glasses. All glasses are containers. Conclusions: I. All cups are containers. II. Some containers are cups. III. All containers are cups.

  • A. Only I and II
  • B. Only I
  • C. All follow
  • D. Only II and III

Explanation: The correct answer is Option A: Only I and II. Let's analyze each conclusion:Conclusion I: 'All cups are containers' is true.

Read the full explanation →
Correct answer: Only I and II

124. Statements: Some pens are pencils. All pencils are erasers. Conclusions: I. Some pens are erasers. II. All pens are erasers. III. Some erasers are pens

  • A. Only I and III
  • B. Only II
  • C. Only III
  • D. Only I

Explanation: To solve this question, consider the logical deductions: Start with the statements 'Some pens are pencils' and 'All pencils are erasers'.

Read the full explanation →
Correct answer: Only I and III

125. Statements: No apple is banana. Some bananas are mangoes. Conclusions: I. Some apples are mangoes. II. No apple is mango. III. All mangoes are bananas.

  • A. None follow
  • B. Only III
  • C. Only II
  • D. Only I

Explanation: The correct answer is 'None follow'. Let's analyze each conclusion: Conclusion I: 'Some apples are mangoes.' This cannot be concluded as…

Read the full explanation →
Correct answer: None follow

126. Statements: Some oranges are fruits. All fruits are healthy. Conclusions: I. Some oranges are healthy. II. All oranges are healthy. III. All healthy things are fruits.

  • A. Only I
  • B. I and II
  • C. Only II
  • D. None

Explanation: Conclusion I is correct because the statement 'Some oranges are fruits' combined with 'All fruits are healthy' implies that those oranges…

Read the full explanation →
Correct answer: Only I

127. Statements: All students are intelligent. Some intelligent are scholars. Conclusions: I. Some students are scholars. II. All scholars are intelligent. III. Some scholars are students

  • A. Only I
  • B. Only II
  • C. I and III
  • D. None

Explanation: To evaluate the conclusions, consider the logical implications of the statements.

Read the full explanation →
Correct answer: None

128. Statements: Some dogs are cats. All cats are lions. Conclusions: I. Some dogs are lions. II. Some lions are dogs. III. All dogs are lions.

  • A. None follow
  • B. Only II
  • C. I and II
  • D. Only III

Explanation: Given the statements 'Some dogs are cats' and 'All cats are lions,' we can logically deduce the following conclusions: 'Some dogs are…

Read the full explanation →
Correct answer: I and II

129. Statements: All books are papers. No paper is plastic. Conclusions: I. No book is plastic. II. All papers are books. III. Some plastics are books

  • A. Only I
  • B. I and II
  • C. Only II
  • D. All follow

Explanation: To evaluate the conclusions, we must analyze the logical relationships in the statements: 'All books are papers' and 'No paper is…

Read the full explanation →
Correct answer: Only I

130. Statements: Some computers are machines. All machines are devices. Conclusions: I. Some computers are devices. II. All devices are machines. III. All machines are computers.

  • A. Only I
  • B. Only II
  • C. None follow
  • D. Only I and II

Explanation: To solve this logical deduction question, we need to evaluate each conclusion in the context of the given statements:Conclusion I: 'Some…

Read the full explanation →
Correct answer: Only I

131. Statements: No car is bike. Some bikes are trucks. Conclusions: I. No car is truck. II. Some trucks are not cars. III. Some bikes are not cars

  • A. Only III
  • B. Only II
  • C. II and III
  • D. I and III

Explanation: The correct answer is Option C: 'II and III'. Let's break down each conclusion:Conclusion I: 'No car is truck.' This conclusion is…

Read the full explanation →
Correct answer: II and III

132. Statements: All mobiles are electronics. Some electronics are gadgets. Conclusions: I. Some mobiles are gadgets. II. All electronics are mobiles. III. Some gadgets are electronics

  • A. Only III
  • B. Only I and II
  • C. I and III
  • D. None

Explanation: To solve this logical deduction problem, evaluate each conclusion based on the given statements:Statements: All mobiles are electronics.

Read the full explanation →
Correct answer: Only III

133. Statements: All flowers are leaves. All leaves are branches. Conclusions: I. All flowers are branches. II. Some branches are flowers

  • A. Only I
  • B. Only II
  • C. Both I and II
  • D. None

Explanation: The statements 'All flowers are leaves' and 'All leaves are branches' establish a transitive relationship.

Read the full explanation →
Correct answer: Both I and II

134. Statements: Some mobiles are phones. All phones are chargers. Conclusions: I. Some mobiles are chargers. II. All chargers are phones. III. Some phones are mobiles.

  • A. I and III
  • B. Only III
  • C. I and II
  • D. Only I

Explanation: The correct answer is Option A: I and III. Conclusion I follows because if some mobiles are phones and all phones are chargers, then it…

Read the full explanation →
Correct answer: I and III

135. Statements: All squares are rectangles. Some rectangles are circles. Conclusions: I. Some circles are squares. II. Some rectangles are not squares. III. All squares are circles.

  • A. None follow
  • B. Only II
  • C. Only I and II
  • D. All follow

Explanation: The statements provide the following information: 'All squares are rectangles' and 'Some rectangles are circles'.

Read the full explanation →
Correct answer: None follow

136. Statements: No tree is fruit. All fruits are sweet. Conclusions: I. No tree is sweet. II. Some sweet things are fruits

  • A. Only II
  • B. Both
  • C. Only I
  • D. None

Explanation: To solve this, examine the statements: 'No tree is fruit' and 'All fruits are sweet.' Conclusion I, 'No tree is sweet,' cannot be deduced…

Read the full explanation →
Correct answer: Only II

137. Statements: All actors are artists. No artist is doctor. Conclusions: I. Some doctors are actors. II. No actor is a doctor. III. Some artists are actors

  • A. Only II and III
  • B. Only III
  • C. I and II
  • D. All follow

Explanation: To solve this question, we need to analyze the relationships given in the statements.

Read the full explanation →
Correct answer: Only II and III

138. Statements: All pens are blue. Some blue things are books. Conclusions: I. Some pens are books. II. Some books are blue

  • A. Only I
  • B. Only II
  • C. Both
  • D. None

Explanation: To determine the validity of the conclusions, analyze the logical relationships in the statements: 'All pens are blue' implies that every…

Read the full explanation →
Correct answer: Only II

139. Statements: Some cups are plates. All plates are spoons. Conclusions: I. Some cups are spoons. II. All spoons are plates. III. Some plates are cups

  • A. Only III
  • B. I and III
  • C. Only II
  • D. Only I

Explanation: The correct answer is Option B: I and III.Conclusion I: 'Some cups are spoons.' - This follows because if 'some cups are plates' and 'all…

Read the full explanation →
Correct answer: I and III

140. Statements: All students are humans. All humans are animals. Conclusions: I. All students are animals. II. Some animals are humans.

  • A. Both I and II
  • B. Only I
  • C. Only II
  • D. None

Explanation: The correct answer is Option A: Both I and II. Conclusion I follows logically because if all students are humans and all humans are…

Read the full explanation →
Correct answer: Both I and II
Start Free Logical Deductions Practice MCQs Test