Eight boxes labeled 1-8 are arranged in a line. Box 3 is between boxes 2 and 4. Box 5 is immediately right of box 4. Box 8 is immediately left of box 1. What is the arrangement?

The correct answer is D: Cannot be determined. The constraints 'Box 3 between 2&4' and 'Box 5 right of Box 4' and 'Box 8 left of Box 1' create conflicting arrangements in a linear sequence. Box 8 cannot be immediately left of Box 1 in a line where boxes are numbered sequentially.

A man points to a woman and says 'Her mother is the only daughter of my mother.' Who is the woman to the man?

The correct answer is D: His daughter. 'My mother's only daughter' = the man's sister (or himself, but he's a man). But the statement says 'Her mother is my mother's only daughter', so the woman's mother is the man's sister. Therefore, the woman is the man's niece. Wait, re-reading: if the woman's mother is his sister, then the woman is

No cats are dogs. All dogs are animals. Which statement is valid?

The correct answer is D: Conclusions cannot be determined. While all dogs are animals, cats could be or not be animals based on the premises. The first statement only tells us cats aren't dogs, not about their relationship with animals.

Ravi goes 5 km north, then 3 km east, then 5 km south. How far is he from starting point?

The correct answer is A: 3 km. North 5 km and South 5 km cancel out. Only 3 km east remains.

Statement: All musicians are creative. Some creative people are scientists. Conclusion: Some musicians are scientists.

The correct answer is C: Cannot be determined. While all musicians are creative, and some creative people are scientists, we cannot definitively conclude that some musicians are scientists without knowing the overlap between the two groups.

Central Govt Exam Preparation — SSC, UPSC, Bank, Railway

Q.1 Hard Syllogism

All engineers are technical. Some technical people are artists. Some artists are not engineers. Based on this, which is definitely true?

A All engineers are artists

B Some technical people are engineers

C No artist is technical

D All technical people are engineers

Correct Answer: B. Some technical people are engineers

Explanation:

Since all engineers are technical, it means at least some technical people must be engineers.

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Q.2 Hard Syllogism

No metal is a liquid at room temperature. All liquids at room temperature are transparent. Some metals are not transparent. Which conclusion is definitely false?

A All metals are transparent

B Some liquids are metals

C All transparent things are liquids

D Some metals are transparent

Correct Answer: B. Some liquids are metals

Explanation:

Since no metal is a liquid at room temperature, the statement 'Some liquids are metals' is definitely false.

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Q.3 Hard Syllogism

All A are B. All B are C. Some C are not D. No D is E. Which of the following must be true?

A Some A are not D

B All A are D

C Some A are E

D No A is E

Correct Answer: A. Some A are not D

Explanation:

Since all A are B, all B are C, and some C are not D, it follows that some A are not D (as some of C are not D).

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Q.4 Hard Syllogism

Some intelligent people are not ambitious. All ambitious people are successful. Can we conclude that some intelligent people are not successful?

A Yes, definitely

B No, we cannot conclude

C No, the opposite is true

D Only some intelligent people are not successful

Correct Answer: B. No, we cannot conclude

Explanation:

Although some intelligent people are not ambitious, this doesn't mean they are not successful through other means.

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Q.5 Hard Syllogism

All teachers are knowledgeable. Some knowledgeable people are not wise. Which statement must be true?

A Some teachers are not wise

B All teachers are wise

C No teacher is wise

D Cannot determine the relationship

Correct Answer: D. Cannot determine the relationship

Explanation:

While some knowledgeable people are not wise, we cannot determine if the non-wise ones include teachers or not.

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Q.6 Hard Syllogism

All fruits are nutritious. Some nutritious foods are expensive. No expensive food is readily available. Which must be true?

A Some fruits are not readily available

B All fruits are expensive

C Some fruits are readily available

D The information is insufficient

Correct Answer: D. The information is insufficient

Explanation:

While all fruits are nutritious, only some nutritious foods are expensive, so we cannot determine which fruits are expensive and therefore unavailable.

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Q.7 Hard Syllogism

All mountains are geographical features. Some geographical features are tourist attractions. All tourist attractions generate revenue. Can we conclude some mountains generate revenue?

A Yes, definitely

B No, we cannot

C Only partially

D Need more information

Correct Answer: B. No, we cannot

Explanation:

Although mountains are geographical features and some geographical features are tourist attractions, we cannot confirm that the mountains which are geographical features are among those that are tourist attractions.

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Q.8 Hard Syllogism

All organic produce is healthy. Some healthy foods are affordable. No expensive item is affordable. Which conclusion is correct?

A All organic produce is affordable

B Some organic produce may not be expensive

C All affordable foods are organic

D Some expensive items are healthy

Correct Answer: B. Some organic produce may not be expensive

Explanation:

Some healthy foods are affordable. Since all organic produce is healthy, some organic produce could be among those affordable healthy foods, hence some organic produce may not be expensive.

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Q.9 Hard Syllogism

All renewable energy sources are sustainable. Some sustainable practices are costly. All costly practices require government support. Can we say all renewable energy sources require government support?

A Yes

B No

C Partially

D Insufficient data

Correct Answer: B. No

Explanation:

While all renewable sources are sustainable, only some sustainable practices are costly. We cannot establish that all renewable energy sources are among those costly practices.

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Q.10 Hard Syllogism

No pessimist achieves success. All lazy people are pessimists. Some lazy people study. What about those who study?

A All who study are successful

B Some who study may not achieve success

C All who study are lazy

D No one who studies is lazy

Correct Answer: B. Some who study may not achieve success

Explanation:

Some lazy people study, and all lazy people are pessimists, and no pessimist achieves success. Therefore, some who study may not achieve success.

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