Given below are two premises with four conclusions drawn from them. Which of…
2019
Given below are two premises with four conclusions drawn from them. Which of the following is valid conclusion drawn from the premises? Premises: (i) All diaries are copies (ii) No copy is book Conclusions: (a) Some diaries are books (b) Some books are copies (c) No book is copy (d) No diary is book
- A.
a b
- B.
c d
- C.
b c
- D.
a d
Attempted by 45 students.
Show answer & explanation
Correct answer: B
Correct Answer: B Premise (i) says all diaries are copies, and premise (ii) says no copy is a book. Conclusion (c) "No book is a copy" is valid, as it follows from premise (ii). Conclusion (d) "No diary is a book" is also valid, as all diaries are copies, and no copies are books.