**A**syllogism is a kind of logical argument in which one proposition (the conclusion) is inferred from two or more others (the premises).

Question based on syllogism forms an important part of Logical Reasoning section of various MBA exams and even job aptitude tests. Below are the tips which would be handy in solving syllogism problems:

**Tip #1**

Solve the questions through a Venn Diagram. Always make sure common areas are shaded do give you a correct answer.

**Example**of Solving syllogism using venn diagram

**:**

__Statement 1:__All women are mothers.

This could be represented using venn diagram as

**Explanation**

In simple words this represents that mothers is a
bigger group and women belongs to this group. There might be other members of
Mothers group apart from Women. Hence all mothers are women would be incorrect.

__Statement 2:__All mothers are caring

This could be represented using venn diagram
as (Caring is represented by the entire bigger circle outlined by black line)

**Explanation**
This represents that Caring is a bigger group and mothers
belongs to this group. Looking at the venn diagram we can say that all Caring
are not mothers. Furthermore looking it at the venn diagram it’s easy to
conclude that:

All Women are caring

Reasons:

As all mothers are caring and all women are mothers
=> This implies All Women are caring (the same could be easily inferred from
venn diagram as Caring is the biggest set and women is part of it as it is part
of Mothers)

**Tip #2**

Shortcut rules (if Venn Diagrams are confusing you) between Statement 1 and
Statement 2 in that order

All + All = All

All + No = No

All + Some = No Conclusion

Some + All = Some

Some + Some = No Conclusion

Some + No = Some Not

No + No = No Conclusion

No + All = Some not reversed

No + Some = Some not reversed

You can cancel out common terms in two statements given, then on the remaining terms apply the syllogisms rules and solve. E.g. Some dogs are goats, All goats are cows. Cancel out "goats" which leaves us with Some dogs are...all are cows. Important words remaining are ALL and SOME in that order. SOME + ALL = SOME, hence conclusion is SOME dogs are cows.

Interchange between reading the question as well as the conclusion before arriving at the answers. Always evaluate each and every conclusion to find out how many conclusions are possible.

Avoid using common knowledge as Syllogisms questions usually state unnatural statements

Remember some implications

All <=> Some, e.g. All A are B also implies Some A are B (being a subset) and Some B are A

Some <=> Some, e.g. Some A are B also implies Some B are A

No<=> No, e.g. No A are B also implies No B are A

All + All = All

All + No = No

All + Some = No Conclusion

Some + All = Some

Some + Some = No Conclusion

Some + No = Some Not

No + No = No Conclusion

No + All = Some not reversed

No + Some = Some not reversed

**Tip #3**You can cancel out common terms in two statements given, then on the remaining terms apply the syllogisms rules and solve. E.g. Some dogs are goats, All goats are cows. Cancel out "goats" which leaves us with Some dogs are...all are cows. Important words remaining are ALL and SOME in that order. SOME + ALL = SOME, hence conclusion is SOME dogs are cows.

**Tip #4**Interchange between reading the question as well as the conclusion before arriving at the answers. Always evaluate each and every conclusion to find out how many conclusions are possible.

**Tip #5**Avoid using common knowledge as Syllogisms questions usually state unnatural statements

**Tip #6**Remember some implications

All <=> Some, e.g. All A are B also implies Some A are B (being a subset) and Some B are A

Some <=> Some, e.g. Some A are B also implies Some B are A

No<=> No, e.g. No A are B also implies No B are A

**Also Check:**
In the first venn diagram, shouldn't mothers be the subset of women?

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