Amazon MBA: Syllogism 2

Question 1

Statements: All pens are books. All books are tables. Conclusion: All pens are tables.

Accepted Answer

Conclusion follows

Answer

If all pens are books and all books are tables, then all pens must be tables.

Question 2

Statements: Some cats are dogs. All dogs are animals. Which conclusion follows?

Accepted Answer

Some cats are animals

Answer

The cats that are dogs are animals, so some cats are animals.

Question 3

Statements: No bird is a fish. All sparrows are birds. Conclusion: No sparrow is a fish.

Accepted Answer

Conclusion follows

Answer

Sparrows are birds and no bird is a fish, so no sparrow is a fish.

Question 4

Statements: All flowers are red. Some red things are roses. Conclusion: Some flowers are roses.

Accepted Answer

Conclusion does not follow

Answer

The roses among red things need not be the flowers, so no link is guaranteed.

Question 5

Statements: Some pens are inks. No ink is a pencil. Which conclusion is valid?

Accepted Answer

Some pens are not pencils

Answer

Pens that are inks cannot be pencils, so some pens are not pencils.

Amazon Practice Test