Syllogism Questions for SBI PO: The reasoning section of SBI PO will always be incomplete without the syllogism questions. Many aspirants find them to be tricky and confusing. The trick is to first have a conceptual understanding of the topic and then follow a proven approach for solving the question. And it goes without saying without practice these questions are hard to get by.
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the three statements disregarding commonly known facts.
Statements:
A few pens are pencils.
Only pencils are glasses.
No persons are pens.
Conclusions:
I. Some pens being glasses is a possibility.
II. No persons are pencils.
a. Only conclusion II follows
b. Both conclusion I and conclusion II follow
c. Neither conclusion I nor conclusion II follows
d. Only conclusion I follows
e. None of these
Answer: c
Solution:
Following figure can be formed:
Only pencils are glasses means all glasses are pencils and there is no intersection of any element with glasses, so some pens being glasses is a possibility that doesn’t follow.
From the figure, neither conclusion I nor conclusion II follows.
Hence, option c.
In the question below there are four statements followed by two conclusions I and II. You have to take the four given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the four statements disregarding commonly known facts.
Statements:
Some rivers are oceans.
No oceans are seas.
All seas are lakes.
No lakes are rivers.
Conclusions:
I. Some lakes being oceans is a possibility.
II. Some rivers are not seas.
a. Only conclusion II follows
b. Neither conclusion I nor conclusion II follows
c. Both conclusion I and conclusion II follow
d. Only conclusion I follows
e. None of these
Answer: c
Solution:
Following figure can be formed:
From the figure, both conclusion I and conclusion II follow
Hence, option c.
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the three statements disregarding commonly known facts.
Statements:
No apples are fruits.
All fruits are mangoes.
Only a few mangoes are bananas.
Conclusions:
I. A few apples are mangoes.
II. A few bananas being fruits is a possibility.
a. Only conclusion I follows
b. None of these
c. Only conclusion II follows
d. Neither conclusion I nor conclusion II follows
e. Both conclusion I and conclusion II follow
Answer: c
Solution:
Following figure can be formed:
From the figure, only conclusion II follows.
Hence, option c.
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the three statements disregarding commonly known facts.
Statements:
2% of hairs are hands.
All hands are legs.
A few legs are fingers.
Conclusions:
I. All hairs being legs is a possibility.
II. A few hands are fingers.
a. Only conclusion II follows
b. Both conclusion I and conclusion II follow
c. Neither conclusion I nor conclusion II follows
d. Only conclusion I follows
e. None of these
Answer: d
Solution:
Following figure can be formed:
From the figure, only conclusion I follows.
Hence, option d.
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the three statements disregarding commonly known facts.
Statements:
A few dates are months.
No months are years.
All dates are days.
Conclusions:
I. All months can be days.
II. Mostly dates are not years.
a. Both conclusion I and conclusion II follow
b. Only conclusion II follows
c. Only conclusion I follows
d. Neither conclusion I nor conclusion II follows
e. None of these
Answer: a
Solution:
Following figure can be formed:
From the figure, both conclusion I and conclusion II follows.
Hence, option a.
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the three statements disregarding commonly known facts.
Statements:
A few boys are girls.
Only girls are men.
No women are boys.
Conclusions:
I. Mostly boys maybe men.
II. No women are girls.
a. Only conclusion II follows
b. Both conclusion I and conclusion II follow
c. Neither conclusion I nor conclusion II follows
d. Only conclusion I follows
e. None of these
Answer: c
Solution:
Following figure can be formed:
Only girls are men, which means all men are girls and there can’t be an intersection of any other element with men, so most boys may be men doesn’t follow.
From the figure, neither conclusion I nor conclusion II follows
Hence, option c.
In the question below there are three statements followed by two conclusions I and II. You have to take the three given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the three statements disregarding commonly known facts.
Statements:
No pictures are lines.
All lines are graphs.
Only a few graphs are diagrams.
Conclusions:
I. No graphs are pictures.
II. No lines are diagrams.
a. Only conclusion II follows
b. Both conclusion I and conclusion II follow
c. Neither conclusion I nor conclusion II follows
d. Only conclusion I follows
e. None of these
Answer: c
Solution:
The following figure can be formed:
From the figure, neither conclusion I nor conclusion II follows
Hence, option c.
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