# Tricks to solve syllogism reasoning problems

Posted by Burst Commerce Collaborator on

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 This article will help you solve direction sense problems in the reasoning section of various competitive exams.  The Syllogism is a kind of logical argument based on premises. It is an instant form of reasoning in which a conclusion is drawn from two given or assumed premises.  Syllogisms usually count for 2 to 5 marks in most competitive exams and you should surely practice this section a lot.

Trick to solve Syllogisms:

 First Premise + Second Premise = Conclusion All + All = All All + Some = No Conclusion All + No = No Some + All = Some Some + Some = No Conclusion Some + Not = Some Not No + All = Some Not (reversed) No + Some = Some Not (reversed) No + No = No Conclusion Some Not + All = No Conclusion Some Not + Some = No Conclusion Some Not + No = No Conclusion
Example 1
All Desks are Chairs
All Chairs are Dustbin

Conclusion: All + All = All
All Desks are Dustbin

Example 2
All Desks are Chairs
Some Chairs are Dustbin
Conclusion: All + Some = No conclusion

Example 3
All Desks are Chairs
No Chairs are Dustbin

Conclusion: All + No = No
No Desks are Dustbin

Example 4
Some Desks are Chairs
All Chairs are Dustbin

Conclusion: Some+ All = Some
Some Desks are Dustbin

Example 5
Some Desks are Chairs
Some Chairs are Dustbin

Conclusion: Some + Some = No Conclusion
No Desk is Dustbin

Example 6
Some Desks are Chairs
No Chairs are Dustbin

Conclusion: Some + No = Some Not
Some Desks are not Dustbin

Example 7
No Desk are Chairs
No Chairs are Dustbin

Conclusion: No + No = No conclusion

Example 8
NO Desk is Chair
Some Chairs are Dustbin

Conclusion: No + some = some not (reversed)
Some Dustbins are not Desk

Example 9
NO Desk is Chair
All Chairs are Dustbin

Conclusion: No + All = some not (reversed)
Some Dustbin are not Desk

Example 10
Some Desks are not Chairs
All Chairs are Dustbin

Conclusion: Some Not + All = No Conclusion

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