Question

In each question below are two statements followed by two conclusions numbered I and II. You have to take the two given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements
No plane is a hill.
Some hills are towns.

Conclusions
I. No town is a plane.
II. Some towns are planes.

• A. Only conclusion I follows
• B. Only conclusion II follows
• C. Either conclusion I or conclusion II follows
• D. Neither conclusion I nor conclusion II follows
• E. Both conclusion I and conclusion II follow

Answer 1

The correct option is C Either conclusion I or conclusion II follows

No plane is a hill.
Some hills are towns.
$E+I\Rightarrow O_1$-type of conclusion.
Some towns are not planes.
Conclusions I and II form a complementary pair.
Therefore, either I or II follows.