Logical reasoning questions for practice

1. All dogs are mammals. All mammals are animals. Therefore:

Some animals are not dogs

All animals are dogs

All dogs are animals

No animals are dogs

2. In a line for concert tickets, Mary is 4th from the front and 7th from the back. How many people are in the line?

9

10

11

12

3. You're asked to give a presentation on a topic you're not fully comfortable with. How should you handle this?

Decline the opportunity outright

Give the presentation without additional preparation

Request time to research and prepare, or suggest a more knowledgeable colleague

Make up information to appear knowledgeable

4. Either we support this war, or we're betraying our country. This statement is an example of:

False dilemma

Straw man argument

Ad hominem attack

Slippery slope fallacy

5. A health campaign claims that regular exercise reduces the risk of heart disease. In a study, people who exercised regularly had lower rates of heart disease than those who didn't. Which of the following, if true, would most weaken the campaign's claim?

The study did not control for dietary habits

Some participants in the study had a family history of heart disease

The study was conducted over a short period of time

Regular exercise has other health benefits besides reducing heart disease risk

6. A circular pool has a diameter of 20 feet. What is its circumference? (Use π = 3.14)

60.8 feet

62.8 feet

64.8 feet

66.8 feet

7. If log₅(x) = 2, what is the value of x?

10

15

20

25

8. What is 55% of 200?

100

105

110

115

9. Continue the series: 4, 6, 10, 18, 34, ...?

64

65

66

67

10. Identify the word that does not fit the pattern:

Benign

Innocuous

Harmless

Pernicious