Read the given statements and conclusions carefully. Assuming that the…
2022
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
All fishes are books
All books are whales
All whales are birds
Conclusions
All fishes are birds
All books are birds
All books are fishes
- A.
Only conclusion I follows
- B.
Only conclusions II and III follow
- C.
All conclusions I, II and III follow
- D.
Only conclusions I and II follow
Attempted by 68 students.
Show answer & explanation
Correct answer: D
Step 1: Draw a Venn diagram based on the statements. Place 'Fishes' inside 'Books', 'Books' inside 'Whales', and 'Whales' inside 'Birds'.
Step 2: Check Conclusion I & II. Since the 'Fishes' and 'Books' circles are entirely contained within the 'Birds' circle, both "All fishes are birds" and "All books are birds" are true.
Step 3: Check Conclusion III. Moving from outer to inner circles means "Some" applies, not "All". Thus, "All books are fishes" is false.
Final Answer: Option D