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
All metals are plastics.
All plastics are fibers.

Conclusions
I. At least some fibres are metals.
II. Some metals are not fibres.

• 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 A Only conclusion I follows

All metals are plastics.
All plastics are fibres.
$A+A\Rightarrow A$-type of conclusion
All metals are fibres.
Conclusion I is the converse of it.