Two statements are given, followed by four conclusions numbered I
| 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.
Statement:
All pros are cons.
All cons are loss.
Conclusions:
I. No loss are cons.
II. No cons are pros.
III. No loss are pros.
IV. All pros are loss.
Statement:
All pros are cons.
All cons are loss.
Conclusions:
I. No loss are cons.
II. No cons are pros.
III. No loss are pros.
IV. All pros are loss.
A. Only conclusion (III) follows
B. Only Conclusion (IV) follows
C. Conclusion (I) and (II) follow
D. Only conclusion (I) follows
Please scroll down to see the correct answer and solution guide.
Right Answer is: B
SOLUTION
The least possible Venn-diagram is-
Conclusions:
I. No loss are cons - (It does not follow as it is not a definite case).
II. No cons are pros - (It does not follow as it is not a definite case).
III. No loss are pros - (It does not follow as it is not a definite case).
IV. All pros are loss - (It follows as it is a definite case).
So, only conclusion IV follows.
Hence, the correct option is B.
