syllogism questions for sbi po


Question 1:

Three statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statements:

All hens are eggs.

No birds are eggs.

All eggs are lions.

Conclusions:

I. All hens are lions.

II. Some lions are hens.

III. No eggs are birds.

A. Either conclusion II or III follows.

B. Only conclusion I follows.

C. All the conclusions follow.

D. Only conclusions I and II follow.

Answer:

C

Solution:

Given statements can be drawn as shown below in the venn-diagram:


Question 2:

Two statements are given, followed by three conclusions numbered I, II and III. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statements:

Some autos are cycles.

All cycles are trucks.

Conclusions:

I. Some trucks are autos.

 II. Some trucks are cycles.

III. Some cycles are autos.

A. Conclusion I and III follow.

B. Only conclusions II and III follow.

C. All conclusions follow.

D. Only conclusions I and II follow.

Answer:

C

Solution:

Given statements can be drawn as shown below in the venn-diagram:


Question 3:

Three statements are given, followed by three conclusions numbered I, II and Ill. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statements:

All hens are eggs.

All birds are eggs.

Some eggs are lions.

Conclusions:

I. Some lions are eggs.

II. Some eggs are hens.

III. Some eggs are birds.

A. All the conclusions follow.

B. Either conclusion II or III follows.

C. Only conclusion I follows.

D. Only conclusions I and II follow.

Answer:

A

Solution:

Given statements can be drawn as shown below in the venn-diagram:


Question 4:

Two statements are given, followed by four conclusions numbered I, II, III and IV. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statements:

No carrot is root.

All roots are potatoes.

Conclusions:

I. No carrot is potatoes.

II. No potatoes is carrot.

III. Some potatoes are roots.

IV. All the potatoes are roots.

A. Only conclusion (III) follows

B. Conclusion (I) and (IV) follow

C. Conclusion (I) and (II) follow

D. Only conclusion (I) follows

Answer:

A

Solution:

Given statements can be drawn as shown below in the venn-diagram:


Question 5:

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(S) from the statements.

          Statements:

          1.Some dancers are singers.

          2.No singer is an actor.

          Conclusions:

          I. Some actors are singers.

          II. All singers are dancers.

          (A) Either conclusion I or II follows

          (B) Only conclusion I follows

          (C) Only conclusion II follows

          (D) Neither conclusion I nor II follows

Answer:

D

Solution:

Given statements can be drawn as shown below in the venn-diagram:

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