Statements: 

Some boys are men. 

No man is black. 

Conclusion: 

I. Some boys are not black. 

II. Some men are boys. 

Statements: 

Some politicians are social workers. 

All doctors are social workers. 

Conclusion: 

I. Some doctors are politicians 

II. Some social workers are doctors as well as politicians. 

Read the given statement and conclusions carefully and decide which conclusion follows.
Statement:
Sound cannot transmit in vacuum.
Conclusion:
I. We Cannot hear the sound of explosion in vacuum.
II. We cannot hear the sound of explosions in the atmosphere.

Statements: Those working in private firms are hardworking.
Conclusion:
I. Some hardworking people work in private firms.
II. Government employees are not hardworking.

Statements: Students learn in schools, because they understand what they are taught.
Conclusion:
I. Students' learning in schools depends on their learning ability.
II. It depends on what students learn in schools. How they are taught.

Statements:

Some quadrilaterals are squares.

All squares are rhombuses.

Conclusions:

I. No quadrilateral is a rhombus.

II. All rhombuses are squares.

III. Some quadrilaterals are rhombuses.

In the following question three statements and four conclusions are given. You have to consider the statements to be true even if there are differences in commonly known facts and choose the correct conclusion.
Statement:
1. In our school, all first year students are fans of cricket.
2. He also has some tennis fans.
3. Some tennis lovers are football fans.
Conclusion:
I. Except for the first year students, all the rest are not interested in sports.
II. Some first year students play cricket.
III. All the first year students are football enthusiasts.
IV. Some first year students are not football enthusiasts.

In the question two statements are given, followed by two conclusions I and II. You have to consider the statements to true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions if any, follows from the given statements.
Statements:
I. Some wild are carnivores.
II. All wild are lions.
Conclusions:
I. All carnivores are lions.
II. Some lions are carnivores.