Read the given statements and conclusions carefully. Assuming that the…
2023
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: A. All ducks are cats. B. All cats are lions. C. Some lions are jungles. Conclusions: I. No lions are cats. II. No cat is a duck. III. All ducks are lions.
- A.
Only conclusion III follows
- B.
Only conclusions II and III follow
- C.
All the conclusions I, II and III follow
- D.
Only conclusions I and II follow
Attempted by 74 students.
Show answer & explanation
Correct answer: A
Step 1: Draw the Venn diagram. Place the 'ducks' circle inside 'cats', and the 'cats' circle inside 'lions'. Draw 'jungles' intersecting with 'lions'.
Step 2: Check Conclusions I and II. Both are negative ("No..."). Since statements A and B are positive, these negative conclusions are definitely false. Also, visually, some lions are clearly cats, and some cats are ducks.
Step 3: Check Conclusion III. Since 'ducks' is inside 'cats' and 'cats' is inside 'lions', the 'ducks' circle is completely inside the 'lions' circle. So, "All ducks are lions" is absolutely true.
Final Answer: Option A