Statements: Some participants are students.
                    Some students are boys.
Conclusions I. No boy is a participant.
                    II. All boys are participants.

Statements: All laptops are computers
                    Some laptops are notebooks.
Conclusions I. Some notebook are computers
                    II. All notebooks are computers.

Statements: All rows are lines
                     All lines are queues.
Conclusions
                   I. All rows are queues.
                   II. Atleast some queues are lines.

In the question below, two statements are given followed by two conclusions numbered I and II. You have to take the two statements to be true even if they seem to be variance from the commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding the commonly known facts.
Statements: Some rings are circles.
                    No circle is a square.
Conclusion I. No ring is a square.
                   II. All rings are squares.

In the each of the Questions are given three statements followed by three conclusions numbered I ,II and III. You have to take the given statements to be true even if they seem to be at variance from the commonly known facts. Read all the conclusion and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.
 Statements: Some hills are rivers.
                    Some rivers are deserts.
                    All desert are roads.
 Conclusions: I. Some roads are rivers.
                    II. Some roads are hills.
                    III. Some deserts are hills.

Statement: Increasing levels of air pollution is creating health hazards for people living in the cities.
Courses of action :
I. All industries should be shifted immediately to the outskirts of the cities.
II. Transport authorities should immediately ban all the vehicles running on petrol.