Question

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

Statements
Some buildings are rivers.
Some mountains are both buildings and rivers.
Some roads are buildings.
All roads are trucks.

Conclusion
I. Some mountains are roads.
II. Some buildings are trucks.
III. Some rivers are roads.
IV. Some trucks are rivers.

• A. None follows
• B. Only I follows
• C. Only II follows
• D. Only III follows
• E. All follow

Answer 1

The correct option is C Only II follows

Mediate term is final out by converting the I type statement by the alignment role.
some roads are buildings.
conversion some buildings are roads
some buildings are roads (I-type)
All roads are trucks (A-type)
$I+A\to Itype$
Some buildings are trucks
(Conclusion II follows)