Logical reasoning questions for practice

1. Which word does not belong in the group?

Telescope

Microscope

Periscope

Stethoscope

2. What is the value of x? Statement 1: x² - 5x + 6 = 0 Statement 2: x is a positive integer

Statement 1 alone is sufficient

Statement 2 alone is sufficient

Both statements together are sufficient

Both statements together are not sufficient

3. If a shirt costs $24 after a 20% discount, what was its original price?

$28

$30

$32

$36

4. What is 80% of 150?

110

115

120

125

5. In a certain country, all citizens over 18 years old are eligible to vote. Tom is 20 years old and a citizen of this country. What can be inferred about Tom?

Tom always votes in elections

Tom is eligible to vote

Tom is interested in politics

Tom voted in the last election

6. A company claims that their new air purifier removes 99.9% of airborne particles. Which of the following, if true, would most strengthen this claim?

The air purifier uses a technology patented by the company

Independent laboratory tests confirm the 99.9% removal rate

The air purifier is more expensive than competing models

The company has been manufacturing air purifiers for many years

7. If 'A * B' means 'A is the sister of B', 'A + B' means 'A is the wife of B', and 'A - B' means 'A is the father of B', which of the following means 'M is the aunt of N'?

M * P - N

M + P - N

M * P + N

M - P * N

8. Five friends P, Q, R, S, and T are sitting in a circle facing the center. R is to the immediate left of P. T is between S and Q. Who is sitting opposite to P?

Q

R

S

T

9. A study finds that students who participate in music programs have higher math scores. The researchers conclude that music education improves mathematical ability. Which of the following is an assumption made in this conclusion?

All students have equal access to music programs

Mathematical ability is the most important academic skill

There are no other significant differences between music participants and non-participants

All types of music education have the same effect on math scores

10. A study found that people who eat organic food have lower rates of certain diseases. Therefore, eating organic food prevents these diseases. Which of the following, if true, would most weaken this conclusion?

Organic food is more expensive than non-organic food

People who eat organic food tend to have healthier lifestyles overall

Some organic foods contain higher levels of certain nutrients

The study was conducted over a short period of time