MCQs - CoreMCQs

201

If all A are B, no B are C, and some A are D, then:

Analytical Reasoning

A. Some D are C

B. No D are C

C. Some A are C

D. All D are C

Answer: Since no B are C and some A are D where all A are B, no D that are A can be C.

202

Which is a necessary assumption? \'Exercise improves memory because it increases blood flow to the brain.\'

Analytical Reasoning

A. Exercise increases blood flow

B. Blood flow improves memory

C. Memory improvement is measurable

D. All of the above

Answer: For the causal claim to work, all these assumptions must be true.

203

P→Q, Q→R, R→S. If S is true, what can we conclude about P?

Analytical Reasoning

A. P is definitely true

B. P is definitely false

C. P may be true or false

D. P is unknown but likely true

Answer: S being true doesn\'t prove P is true. The chain could have been triggered by other causes.

204

If A∧B→C, A is true, C is false, then:

Analytical Reasoning

A. B is true

B. B is false

C. A is false

D. Both A and B are true

Answer: If A∧B→C and C is false while A is true, B must be false.

205

What is the conclusion? \'Since education reduces poverty, we should invest in schools.\'

Analytical Reasoning

A. Education reduces poverty

B. We should invest in schools

C. Poverty is bad

D. Schools provide education

Answer: The recommendation to invest in schools is the conclusion supported by the premise.

206

All cars have wheels. Bicycle Z has wheels. Therefore:

Analytical Reasoning

A. Bicycle Z is a car

B. Bicycle Z might be a car

C. Bicycle Z is not a car

D. All wheeled things are cars

Answer: While cars have wheels, bicycles are not cars. Having wheels is not sufficient for being a car.

207

What is the flaw? \'If we allow this one exception, everyone will want exceptions.\'

Analytical Reasoning

A. Slippery slope

B. Ad hominem

C. Straw man

D. Circular reasoning

Answer: Assuming one exception leads to everyone wanting exceptions is a slippery slope.

208

What assumption is required? \'Remote work increases productivity because employees are happier.\'

Analytical Reasoning

A. Remote work makes employees happier

B. Happier employees are more productive

C. Productivity can be measured

D. All of the above

Answer: The argument requires all these assumptions for the causal chain to hold.

209

If exactly 3 of the following are true, which conclusion is valid? (1) All X are Y. (2) Some Z are X. (3) No W are Y. (4) Some V are W.

Analytical Reasoning

A. Some Z are Y

B. No Z are W

C. All X are W

D. Some V are not Y

Answer: If (1) All X are Y and (2) Some Z are X, then by syllogism, some Z are Y.

210

A implies B. B implies C. C implies D. Which is valid?

Analytical Reasoning

A. D implies A

B. A implies D

C. C implies A

D. B implies D

Answer: By transitivity, A→B→C→D means A implies D.

211

Which weakens the argument? \'Tax cuts stimulate the economy because people spend more.\'

Analytical Reasoning

A. People spend more when they have more money

B. Some people save tax cuts instead of spending

C. Economic stimulation is good

D. Tax cuts reduce government revenue

Answer: If people save rather than spend tax cuts, the economic stimulation effect is weakened.

212

Which strengthens? \'Sleep deprivation reduces cognitive function. Sleep-deprived participants performed worse on tests.\'

Analytical Reasoning

A. Sleep is important

B. Test performance measures cognitive function

C. Sleep deprivation is common

D. Tests are reliable

Answer: If test performance measures cognitive function, this strengthens the causal claim.

213

If no A are B, all B are C, and some D are A, then:

Analytical Reasoning

A. Some D are C

B. No D are C

C. All D are C

D. Some C are D

Answer: No A are B and all B are C means no A are C. Since some D are A, no D that are A are C.

214

Some students passed. All who passed studied. No one who studied failed. Therefore:

Analytical Reasoning

A. All students studied

B. Some students studied

C. No students failed

D. Both B and C

Answer: Since some passed and all who passed studied, some studied. And since no one who studied failed, some didn\'t fail.

215

All engineers study math. Some who study math are good at logic. Therefore:

Analytical Reasoning

A. All engineers are good at logic

B. Some engineers may be good at logic

C. No engineers are good at logic

D. All who are good at logic are engineers

Answer: We can only conclude that some engineers may be good at logic.

216

Which is an underlying assumption? \'We should ban social media for minors because it harms mental health.\'

Analytical Reasoning

A. Social media harms mental health

B. Minors are vulnerable

C. Banning is effective

D. All of the above

Answer: The argument requires all these assumptions: harm exists, minors are affected, and bans work.

217

A is neither taller nor shorter than B. C is taller than A. Who is tallest?

Analytical Reasoning

A. A

B. B

C. C

D. Cannot be determined

Answer: A=B in height, C>A, so C is taller than both A and B, making C tallest.

218

If P or Q, not both. P is true. Q is false. What about R?

Analytical Reasoning

A. R is true

B. R is false

C. R is unknown

D. R contradicts

Answer: The truth values of P and Q tell us nothing about R.

219

Some fruits are citrus. All citrus contains vitamin C. No vitamin C source is harmful. Therefore:

Analytical Reasoning

A. All fruits are harmless

B. Some citrus is harmless

C. No citrus is harmful

D. All vitamin C sources are citrus

Answer: Since all citrus contains vitamin C and no vitamin C source is harmful, some citrus is harmless.

220

If P→Q, R→¬Q, and P and R are both true, then:

Analytical Reasoning

A. Q is true

B. Contradiction

C. P is false

D. R is false

Answer: P→Q means Q is true. R→¬Q means Q is false. Both P and R true creates a contradiction.

GAT Preparation MCQs