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8 rules of syllogism

Total questions: 15

Worksheet time: 12mins

Name
Class
Date
1.

What is the conclusion that you can infer from these two premises below:


All tigers are cat

All cats are animals

Therefore .................................

a)

Cat are tigers

b)

Animals are cats

c)

All tigers are animals

d)

Cat are tigers

2.

Most lawyers are men

Most men love to lie

Therefore ........................................

a)

Lawyers are men

b)

Lawyers are lier

c)

Men are lawyers

d)

Most lawyers are liars

3.

All nerds are smart

Smart people makes more money

Therefore .................................................

a)

All nerds makes more money

b)

Nerds are smart people

c)

Money is with smart people

d)

Smart people are rich nerds

4.

No lazy person passes exams.

Abu just pass his exam.

Therefore ......................................................

a)

Passes exams is not for lazy person

b)

Abu does not pass his exam

c)

Abu is not a lazy person.

d)

Abu is lazy

5.

All birds have wings

No humans have wings

Thus ..........................................

a)

Birds and humans have wings

b)

No humans are birds.

c)

birds are humans

d)

Birds and humans are different

6.

All men are mortal

Mr. Mark is a man

Therefore ........................................

a)

Mr. Mark is a man

b)

Men are like Mr. Mark

c)

Mr. Mark is mortal

d)

All men are mortal

7.

Rich people wears diamonds.

Molly is rich

Hence _________________________________

a)

Molly wears diamonds

b)

Diamonds are for the rich

c)

Molly loves diamonds

d)

Molly loves rich people

8.

Since all squares are rectangles, and all rectangles have four sides, so all squares have four sides.

a)

Deductive

b)

Inductive

9.

Jennifer leaves for school at 7:00 am. Jennifer is always on time. Jennifer assumes, then, that she will always be on time if she leaves a 7 am.

a)

Deductive

b)

Inductive

10.

Mike finished ahead of Paul. Paul and Brian both finished before Liam. Owen did not finish last.

Who was the last to finish?

a)

Owen

b)

Brian

c)

Paul

d)

Liam

11.

All crows are black. All black birds are loud. Therefore, all crows are loud.

a)

True

b)

False

c)

Insufficient information

12.

Computer companies are always looking for new employees. Company A is a huge computer company. Company B is a huge food company. Computer companies are sometimes small. Which statement must be true?

a)

Company B is looking for new employees.

b)

Company A and Company B are not small companies.

c)

Company B is a small company.

d)

Companies A and B are not hiring at the moment.

e)

Company A is a food company.

13.

Critical thinking refers to your ability to

a)

handle stress at work

b)

systematically and logically solve a problem

c)

criticize other people tactfully

d)

all of these choices

14.

All men are mortal.

Harold is a man.

Therefore, Harold is mortal.


The reasoning above qualifies as deductive reasoning because starts with

a)

something that proves true of a class or category in general.

b)

something proves true of a specific individual.

15.

All bald men are grandfathers.

Harold is a bald man.

Therefore, Harold is a grandfather.

a)

The logic proves faulty.

b)

The logic proves convincing.