Verbal Reasoning - Syllogism

Exercise :: Syllogism - Syllogism 2

In each of the following questions two statements are given. Which are followed by four conclusions (1), (2), (3) and (4). Choose the conclusions which logically follow from the given statements.
1. 

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

Conclusions:

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

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

Answer: Option D

Explanation:


2. 

Statements: All green are blue. All blue are white.

Conclusions:

  1. Some blue are green.
  2. Some white are green.
  3. Some green are not white.
  4. All white are blue.

A. Only (1) and (2)
B. Only (1) and (3)
C. Only (1) and (4)
D. Only (2) and (4)

Answer: Option A

Explanation:


3. 

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

Conclusions:

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

A. Only (4)
B. Only (2)
C. Only (3)
D. Only (1)
E. Only (1) and (3)

Answer: Option C

Explanation:


4. 

Statements: All the phones are scales. All the scales are calculators.

Conclusions:

  1. All the calculators are scales.
  2. All the phones are calculators
  3. All the scales are phones.
  4. Some calculators are phones.

A. Only (1) and (4)
B. Only (3) and (4)
C. Only (2) and (4)
D. Only (1) and (2)
E. Only (1) and (3)

Answer: Option C

Explanation:


5. 

Statements: Some tables are T.V. Some T.V. are radios.

Conclusions:

  1. Some tables are radios.
  2. Some radios are tables.
  3. All the radios are T.V.
  4. All the T.V. are tables.

A. Only (2) and (4)
B. Only (1) and (3)
C. Only (4)
D. Only (1) and (4)
E. None of the four.

Answer: Option E

Explanation: