Introduction
What is a Syllogism? A syllogism is a deductive argument relating two premises and a conclusion, all of which are quantified propositions, i.e. propositions joining concepts by using words such as 'some' and 'all'. In simple terms, Syllogism is a deductive argument that is primarily composed of 3 propositions. One of the propositions is used as the conclusion of the syllogism and the other two propositions are used as the premises of the syllogism. Deductive Logic is used to derive conclusions from premises where the truth of the conclusion must always be contained in the truth of the premises. Syllogism Practice Quiz 2 presents Syllogism questions with solutions useful for candidates preparing for different competitive examinations like RRB ALP/Technical Exams/Junior Engineer Recruitment Exams, SSC CGL,SSC CHSL, IBPS, SBI PO, SBI Clerks, CAT and etc.
Syllogism is derived from the Greek word syllogismos, meaning conclusion or inference. Some syllogisms contain three components:
Major Premise
Minor Premise
Conclusion
Example: All roses are flowers (major premise). This is a rose (minor premise). Therefore, I am holding a flower (conclusion).
Quiz
Direction (1 - 5): In each of the following questions two statements are given and these statements are followed by two conclusions numbered (I) and (II). You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.
Give answer:
(A) If only (1) conclusion follows
(B) If only (2) conclusion follows
(C) If either (1) or (2) follows
(D) If neither (1) nor (2) follows and
(E) If both (1) and (2) follow.
1. Statements:
Some actors are singers. All the singers are dancers.
Conclusions:
1. Some actors are dancers.
2. No singer is actor.
2. Statements:
All the harmoniums are instruments. All the instruments are flutes.
Conclusions:
1. All the flutes are instruments.
2. All the harmoniums are flutes.
3. Statements:
Some mangoes are yellow. Some tixo are mangoes.
Conclusions:
1. Some mangoes are green.
2. Tixo is a yellow.
4. Statements:
Some ants are parrots. All the parrots are apples.
Conclusions:
1. All the apples are parrots.
2. Some ants are apples.
5. Statements: Some papers are pens. All the pencils are pens.
Conclusions:
1. Some pens are pencils.
2. Some pens are papers.
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. If both (1) and (2) follow
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. If both (1) and (2) follow
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. If both (1) and (2) follow
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. If both (1) and (2) follow
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Neither (1) nor (2) follows
D. Both (1) and (2) follow
E. If both (1) and (2) follow
Direction (1 - 5): In each of the following questions two statements are given and these statements are followed by two conclusions numbered (I) and (II). You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.
Give answer:
(A) If only (1) conclusion follows
(B) If only (2) conclusion follows
(C) If either (1) or (2) follows
(D) If neither (1) nor (2) follows and
(E) If both (1) and (2) follow.
1. Statements:
All the actors are girls. All the girls are beautiful.
Conclusions:
1. All the actors are beautiful.
2. Some girls are actors.
2. Statements:
All the windows are doors. No door is a wall.
Conclusions:
1. Some windows are walls.
2. No wall is a door.
3. Statements:
All cups are books. All books are shirts.
Conclusions:
1. Some cups are not shirts.
2. Some shirts are cups.
4. Statements:
Some cows are crows. Some crows are elephants.
Conclusions:
1. Some cows are elephants.
2. All crows are elephants.
5. Statements:
All the pencils are pens. All the pens are inks.
Conclusions:
1. All the pencils are inks.
2. Some inks are pencils.
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Both (1) and (2) follow
E. If both (1) and (2) follow
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. If both (1) and (2) follow
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. If both (1) and (2) follow
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. If both (1) and (2) follow
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Both (1) and (2) follow
E. If both (1) and (2) follow
Direction (1 - 4): In each of the following questions two statements are given and these statements are followed by two conclusions numbered (I) and (II). You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.
Give answer:
(A) If only (1) conclusion follows
(B) If only (2) conclusion follows
(C) If either (1) or (2) follows
(D) If neither (1) nor (2) follows and
(E) If both (1) and (2) follow.
1. Statements: Some dogs are bats. Some bats are cats.
Conclusions:
1. Some dogs are cats.
2. Some cats are dogs.
2. Statements: All the trucks are flies. Some scooters are flies.
Conclusions:
1. All the trucks are scooters.
2. Some scooters are trucks.
3. Statements: All buildings are chalks. No chalk is toffee.
Conclusions:
1. No building is toffee
2. All chalks are buildings.
4. Statements:
All cars are cats. All fans are cats.
Conclusions:
1. All cars are fans.
2. Some fans are cars.
Direction In each of the following questions two statements are given. Which are followed by four conclusions (1), (2), (3) and (4). Choose the conclusions which logically follow from the given statements.
5. Statements:
No door is dog. All the dogs are cats.
Conclusions:
1. No door is cat.
2. No cat is door.
3. Some cats are dogs.
4. All the cats are dogs.
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. If both (1) and (2) follow
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. If both (1) and (2) follow
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. If both (1) and (2) follow
- A. Only (1) conclusion follows
B. Only (2) conclusion follows
C. Either (1) or (2) follows
D. Neither (1) nor (2) follows
E. If both (1) and (2) follow
- A. Only (2) and (4)
B. Only (1) and (3)
C. Only (3) and (4)
D. Only (3)
E. If both (1) and (2) follow
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