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: Conclusions:
Only conclusion II follows.
Given Statements:
All crows are parrots.
This means that every crow belongs to the parrot category.
All eagles are parrots.
This means every eagle also belongs to the parrot category.
All parrots are birds.
This means that both crows and eagles, being parrots, are also birds.
Given Conclusions:
Conclusion I: No crow is a bird.
We know from the statements that all crows are parrots and all parrots are birds.
Hence, all crows are birds.
This contradicts the conclusion.
Conclusion I is false. ❌
Conclusion II: Some birds are eagles.
We know that all eagles are parrots and all parrots are birds.
This means that all eagles are also birds.
If all eagles are birds, then it is definitely true that some birds are eagles.
Conclusion II is true. ✅
Conclusion III: All birds are crows.
We only know that all crows are parrots and all parrots are birds.
However, this does not mean that all birds are crows because other birds (e.g., eagles) exist.
Conclusion III is false. ❌
Final Answer:
Only conclusion II follows. ✅
The correct option is 4.
Important Questions from Syllogism
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:
All dancers are talented.
Some girls are dancers.
Conclusions:
I. Some girls are talented.
II. All talented are girls.
III. All girls are talented.
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:
All directors are actors.
No actor is a producer.
All choreographers are directors.
Conclusions:
I. No choreographer is producer.
II. Some actors are choreographers.
III. No director is a producer.
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 follows from the statements.
Statements:
All lemons are plums.
All plums are dates.
Some dates are mangoes.
Conclusions:
I. Some lemons are mangoes.
II. Some mangoes are plums.
III. All lemons are dates.
IV. Some mangoes are dates.
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:
Some cards are postcards.
Some cards are envelopes.
All envelopes are copies.
Conclusions:
I. Some copies are envelopes.
II. Some postcards are copies.
III. Some cards are copies.
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:
All employees are tax-payers.
Some employees are farmers.
Some farmers are doctors.
Conclusions:
I. No farmer is a tax-payer.
II. Some farmers are tax-payers.
