
In the following question, two statements are followed by two conclusions numbered I and II. Assume the given statements to be true even if they are at variance with commonly known facts. Then choose one of the answer choices which are given as:
(1) If only conclusion I follows.
(2) If only conclusion II follows.
(3) If either I or II follows.
(4) If both I and II follow.
(5) If neither I nor II follows.
Statements:
a. All pencils are pens.
b. No pencils are copies.
Conclusions:
I. Some copies are not pens.
II. Some pens are not copies.


Important Questions on Deductive Logic
In the following question, two statements are followed by two conclusions numbered I and II. Assume the given statements to be true even if they are at variance with commonly known facts. Then choose one of the answer choices which are given as:
(1) If only conclusion I follows.
(2) If only conclusion II follows.
(3) If either I or II follows.
(4) If both I and II follow.
(5) If neither I nor II follows.
Statements:
a. All cats are dogs.
b. Some cats are rats.
Conclusions:
I. Some cats are not rats.
II. Some dogs are rats.

In the following question, two statements are followed by two conclusions numbered I and II. Assume the given statements to be true even if they are at variance with commonly known facts. Then choose one of the answer choices which are given as:
(1) If only conclusion I follows.
(2) If only conclusion II follows.
(3) If either I or II follows.
(4) If both I and II follow.
(5) If neither I nor II follows.
Statements:
a. No books are copies.
b. All books are pens.
Conclusions:
I. Some copies are not pens.
II. Some pens are not copies.

In the following question, two statements are followed by two conclusions numbered I and II. Assume the given statements to be true even if they are at variance with commonly known facts. Then choose one of the answer choices which are given as:
(1) If only conclusion I follows.
(2) If only conclusion II follows.
(3) If either I or II follows.
(4) If both I and II follow.
(5) If neither I nor II follows.
Statements:
a. No ducks are parrots.
b. No ducks are cuckoos.
Conclusions:
I. Some parrots are cuckoos.
II. Some parrots are not cuckoos.

In the following question, two statements are followed by two conclusions numbered I and II. Assume the given statements to be true even if they are at variance with commonly known facts. Then choose one of the answer choices which are given as:
(1) If only conclusion I follows.
(2) If only conclusion II follows.
(3) If either I or II follows.
(4) If both I and II follow.
(5) If neither I nor II follows.
Statements:
a. No boys are girls.
b. Some boys are children.
Conclusions:
I. Some girls are not children.
II. No girls are children.

In the following question, two statements are followed by two conclusions numbered I and II. Assume the given statements to be true even if they are at variance with commonly known facts. Then choose one of the answer choices which are given as:
(1) If only conclusion I follows.
(2) If only conclusion II follows.
(3) If either I or II follows.
(4) If both I and II follow.
(5) If neither I nor II follows.
Statements:
a. Some teachers are professors.
b. All teachers are doctors.
Conclusions:
I. Some professors are doctors.
II. Some teachers are not professors.

In the following question, two statements are followed by two conclusions numbered I and II. Assume the given statements to be true even if they are at variance with commonly known facts. Then choose one of the answer choices which are given as:
(1) If only conclusion I follows.
(2) If only conclusion II follows.
(3) If either I or II follows.
(4) If both I and II follow.
(5) If neither I nor II follows.
Statements:
a. Some schools are colleges.
b. No schools are hospitals.
Conclusions:
I. Some colleges are not hospitals.
II. Some hospitals are not colleges.

In the following question, two statements are followed by two conclusions numbered I and II. Assume the given statements to be true even if they are at variance with commonly known facts. Then choose one of the answer choices which are given as:
(1) If only conclusion I follows.
(2) If only conclusion II follows.
(3) If either I or II follows.
(4) If both I and II follow.
(5) If neither I nor II follows.
Statements:
a. Some windows are doors.
b. Some windows are boxes.
Conclusions:
I. Some doors are boxes.
II. Some doors are not boxes.

In the following question, two statements are followed by two conclusions numbered I and II. Assume the given statements to be true even if they are at variance with commonly known facts. Then choose one of the answer choices which are given as:
(1) If only conclusion I follows.
(2) If only conclusion II follows.
(3) If either I or II follows.
(4) If both I and II follow.
(5) If neither I nor II follows.
Statements:
a. Some books are boxes.
b. Some boxes are pens.
Conclusions:
I. Some books are not boxes.
II. All books are boxes.
