Syllogism Question Asked in IAS Prelims 2020

Two Statements are given followed by two Conclusions:

 

Statements:

 

All cats are dogs.

 

All cats are black.

 

Conclusion-I:

 

All dogs are black.

 

Conclusion-II:

 

Some dogs are not black.

 

Which of the above Conclusions logically follows/follow from the two given Statements disregarding commonly known facts?

 

Option (1) Only Conclusion-I

 

Option (2) Only Conclusion-II

 

Option (3) Neither Conclusion-I nor Conclusion-II

 

Option (4) Both Conclusions-I and Conclusion-Il

 

Correct Answer is:Option (3) 

Solution:

none follows as it does not satisfy both the cases given below:

UPSC 2020 Question Paper Alongwith Answer Key – See Here