CAT Syllogism

CAT Syllogism Example

Statement 1: All cats have whiskers. Statement 2: Fluffy is a cat.

Conclusion: What can we infer from the given statements?

Answer: Fluffy has whiskers.

Explanation: The syllogism question presents two statements: “All cats have whiskers” and “Fluffy is a cat.” By combining these statements, we can draw the logical conclusion that Fluffy, being a cat, would also possess whiskers. This inference is based on the fact that all cats, according to the first statement, have whiskers. Therefore, the answer to the syllogism question is that Fluffy has whiskers.


Important rules to solve the problem of Syllogism for CAT Logical Reasoning:

  • All +All=All
  • All +No=No
  • All +Some=No conclusion
  • Some +All=Some
  • Some +No= Some Not
  • Some +Some= No Conclusion
  • No +All = Some Not(Reversed)
  • No +Some=Some Not (Reversed)
  • No +No=No Conclusion

Question Statements:

(1) No mouse is dog.

(2) All the dogs are cats.


(A) No mouse is cat.

(B) No cat is mouse.

(C) Some cats are dogs.

(D) All the cats are dogs.

Answer options:

  1. Only (B) and (D)
  2. Only (A) and (C)
  3. Only (C) and (D)
  4. Only (C)
  5. All the four


No tree is a flower. Some trees are fruits.


(I) Fruits that are trees are not flowers.

(II) No fruit is a flower.

  1. The only conclusion I follow
  2. Only conclusion II follows
  3. Either conclusion I or II follows
  4. Neither conclusion I nor II follows


Ques: Statements:

Lady’s Finger is tastier than cabbage

Cauliflower is tastier than Lady’s Finger

Cabbage is not tastier than peas

  1. Peas are as tasty as lady’s finger
  2. Peas are as tasty as cauliflower and lady’s finger
  3. Peas are not tastier than lady’s finger
  4. Cauliflower is tastier than cabbage
  5. None of the above options




sample questions:



Statements: Some actors are singers. All the singers are dancers.



  1. Some actors are dancers.
  2. No singer is actor.


Only (1) conclusion follows
Only (2) conclusion follows
Either (1) or (2) follows
Neither (1) nor (2) follows
Both (1) and (2) follow

Statements: Some papers are pens. All the pencils are pens.


  1. Some pens are pencils.
  2. Some pens are papers.


Only (1) conclusion follows
Only (2) conclusion follows
Either (1) or (2) follows
Neither (1) nor (2) follows
Both (1) and (2) follow

Statements: No door is dog. All the dogs are cats.


  1. No door is cat.
  2. No cat is door.
  3. Some cats are dogs.
  4. All the cats are dogs.


Only (2) and (4)
Only (1) and (3)
Only (3) and (4)
Only (3)
All the four

Statements: All the locks are keys. All the keys are bats. Some watches are bats.


  1. Some bats are locks.
  2. Some watches are keys.
  3. All the keys are locks.


Only (1) and (2)
Only (1)
Only (2)
Only (1) and (3)

Statements: All men are vertebrates. Some mammals are vertebrates.


  1. All men are mammals.
  2. All mammals are men.
  3. Some vertebrates are mammals.
  4. All vertebrates are men.


Only (4)
Only (2)
Only (3)
Only (1)
Only (1) and (3)



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