Question : Directions: 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:
I. All X are B.
II. All N are X.
Conclusions:
I. All N are B.
II. Some B are X.
Option 1: Neither conclusion I nor II follows
Option 2: Only conclusion II follows
Option 3: Both conclusions I and II follow
Option 4: Only conclusion I follows
Correct Answer: Both conclusions I and II follow
Solution : The possible Venn diagram, according to the given statements is as follows –
Let's analyse the conclusions –
Conclusion (I):
All N are B – From the Venn diagram, it is evident that the circle representing N is completely overlapped by the circle representing B. Thus, it can be concluded that all N are B.
Conclusion (II):
Some B are X – From the Venn diagram, it is evident that some parts of the circle representing B lie inside the circle representing X while some lie outside. Thus, it can be concluded that some B are X.
So, both the conclusions I and II follow. Hence, the third option is correct.
Related Questions
Know More about
Staff Selection Commission Multi Tasking ...
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
Get Updates BrochureYour Staff Selection Commission Multi Tasking Staff Exam brochure has been successfully mailed to your registered email id “”.