Bissoy.com
Doctors Medicines MCQs Q&A

In the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. Some pen are black. II. Some pen are blue. III. No black is red. Conclusions: I. No pen is red. II. Some blue are black. III. Some black are pens.

In the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. Some pen are black. II. Some pen are blue. III. No black is red. Conclusions: I. No pen is red. II. Some blue are black. III. Some black are pens. Correct Answer Only III

Consider the following least possible Venn diagram,

[ alt="14 sep 2017 S2 10" src="//storage.googleapis.com/tb-img/production/18/07/14_sep_2017_S2_10.PNG" style="height:100px; width:390px">

Conclusions:

I. No pen is red → False (It is possible but not definite).

II. Some blue are black → False (It is possible but not definite).

III. Some black are pens → True (It is definitely true as some black are pens).

Hence, only III follows.

Related Questions

In each of the following question below are given some statements followed by some conclusion, Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements, seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements, Statements: I. All pages are yellow. II. All yellow are newspapers. III. Some newspapers are national. Conclusions: I. Some national are yellow II. Some newspapers are pages. III. No page is national.
In the question below are given two statements followed by three conclusions I, II and III. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. Statements: All pens are red. All red are pencils. Conclusions: I. All pens are pencils. II. All pencils are pens. III. At least some pencils are red.
In the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. All pen are pencils. II. All pencils are red. III. No pen is blue. Conclusions: I. No pencil is red. II. Some pencils are pens. III. No red is blue.
Two Statements followed by four Conclusions are given below. You have to take the Statements to be true even if they seem to be at variance from the commonly known facts. Read all the Conclusions and then decide which of the given Conclusions logically follows/ follow from the Statements, disregarding the commonly known facts : Statement-1 : All pens are books. Statement-2 : No chair is a pen. Conclusion-I : All chairs are books. Conclusion-II : Some chairs are pens. Conclusion-III : All books are chairs. Conclusion-IV : No chair is a book. Which one of the following is correct?
In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusion logically follows the given statements: Statements: I. Some chairs are pens II. Some pens are cups. III. All cups are table. Conclusions: I. Some tables are chairs. II. Some cups are pens. III. All tables are pens
In the following question below are given some statements followed by some conclusions Taking the  given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of given conclusion logically follows the given statements, Statements: I. Some pens are round. II. All round are black. Conclusions: I. All black are pens. II. Some round are black. III. All round are pens.
In the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. All red are pen. II. No pen is white. Conclusions: I. No white is pen. II. No red is white. III. All pens are red.
In the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. Some pencils are pens. II. Some pens are red. Conclusions: I. Some pencils are red. II. Some red are pens.
In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. All chairs are pens. II. Some pens are cups. III. All cups are pencils.  Conclusion: I. Some pencils are pens. II. All pencils are chairs. III. All chairs are cups. 
In each of the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements. Statements: I. All cups are glasses. II. Some cups are pens. Conclusions: I. Some pens are cups. II. Some pens are glasses. III. Some pens are not cups.