Question

Two statements are given followed by four conclusions I, II, Ill and IV. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You are to decide which of the given conclusions if any, follow from the given statements.

Statements
All clerks are typists.
Some typists are stenos.

Conclusions
I. Some stenos are clerks.
II. No steno is a clerk.
III. All typists are clerks.
IV. All clerks are stenos.

• A. All the conclusions follow
• B. None of conclusions follow
• C. Either I or II follows
• D. Only IV follows
• E. None of the above

Answer 1

The correct option is C Either I or II follows

The first premise is universal affirmative (A-type).
The second premise is particular affirmative (I-type).
All clerks are typists.
Some typists are stenos.
$A+I\Rightarrow$ No conclusion
Conclusions I and II form a complementary pair. Therefore. either I or II follows.