In each question below some statements are given followed by two conclusions…
2022
In each question below some statements are given followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements, disregarding commonly known facts. Give answer
Statements:
All Book are Pen.
Some Pen are Eraser.
All Eraser are Pencil.
Conclusions:
I. Some Book are Pencil.
II. No Pencil is Book.
Answer: C. If either conclusion I or II follows. — Some pens are erasers and all erasers are pencils, so some pencils are pens. The relation between books and pencils is uncertain, making the complementary…
- A.
If only conclusion I follows.
- B.
If only conclusion II follows.
- C.
If either conclusion I or II follows.
- D.
If neither conclusion I nor II follows.
- E.
If both conclusions I and II follow.
Attempted by 31 students.
Show answer & explanation
Correct answer: C
Some pens are erasers and all erasers are pencils, so some pencils are pens. The relation between books and pencils is uncertain, making the complementary conclusions 'some books are pencils' and 'no pencil is book' an either-or pair. Therefore either conclusion I or conclusion II follows.