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- Question
Statements: Some bags are pockets. No pocket is a pouch.
Conclusions:
- No bag is a pouch.
- Some bags are not pouches.
- Some pockets are bags.
- No pocket is a bag,
Options- A. None follows
- B. Only I and III follow
- C. Only II and III follow
- D. Only either I or IV follows
- E. All follow
- Correct Answer
- Only II and III follow
ExplanationSince one premise is particular and the other negative, the conclusion must be particular negative and should not contain the middle term. So, II follows. III is the converse of the first premise and thus it also holds. - 1. Statements: All branches are flowers. All flowers are leaves.
Conclusions:
- All branches are leaves.
- All leaves are branches.
- All flowers are branches.
- Some leaves are branches.
Options- A. None follows
- B. Only I and IV follow
- C. Only II and III follow
- D. All follow Discuss
- 2. Statements: India's economy is depending mainly on forests.
Conclusions:
- Trees should be preserved to improve Indian economy.
- India wants only maintenance of forests to improve economic conditions.
Options- A. Only conclusion I follows
- B. Only conclusion II follows
- C. Either I or II follows
- D. Neither I nor II follows
- E. Both I and II follow Discuss
- 3. Statements: Company X has a record of manufacturing cameras of quality and the latest design so that you do not spoil even a single shot irrespective of the weather conditions.
Conclusions:
- No other company except X is reputed in the camera industry.
- Anyone can take an acceptable shot with camera X.
Options- A. Only conclusion I follows
- B. Only conclusion II follows
- C. Either I or II follows
- D. Neither I nor II follows
- E. Both I and II follow Discuss
- 4. Statements: I know nothing except the fact of my ignorance.
Conclusions:
- Writer's knowledge is very poor.
- The world of knowledge is too vast to be explored by a single person.
Options- A. Only conclusion I follows
- B. Only conclusion II follows
- C. Either I or II follows
- D. Neither I nor II follows
- E. Both I and II follow Discuss
- 5. Statements: The President of XYZ Party indicated that 25 independent Members of Legislative Assembly (MLA) are seriously considering various options of joining some political party. But in any case all of them collectively will join one party only.
Conclusions:
- The 25 independent MLAs will join XYZ party in a short period of time.
- The 25 independent MLAs will join some other political party in a short period of time.
Options- A. Only conclusion I follows
- B. Only conclusion II follows
- C. Either I or II follows
- D. Neither I nor II follows
- E. Both I and II follow Discuss
- 6. Statements: All aeroplanes are trains. Some trains are chairs.
Conclusions:
- Some aeroplanes are chairs.
- Some chairs are aeroplanes.
- Some chairs are trains.
- Some trains are aeroplanes.
Options- A. None follows
- B. Only I and II follow
- C. Only II and III follow
- D. Only III and IV follow Discuss
- 7. Statements: All politicians are honest. All honest are fair.
Conclusions:
- Some honest are politicians.
- No honest is politician.
- Some fair are politicians.
- All fair are politicians.
Options- A. None follows.
- B. Only I follows.
- C. Only I and II follow.
- D. Only I and III follow Discuss
- 8. Statements: Some clothes are marbles. Some marbles are bags.
Conclusions:
- No cloth is a bag.
- All marbles are bags.
- Some bags are clothes.
- No marble is a cloth.
Options- A. Only either I or IV follows
- B. Only either I or II follows
- C. None follows
- D. Only either I or III follows Discuss
- 9. Statements: Some tables are TVs. Some TVs are radios.
Conclusions:
- Some tables are radios.
- Some radios are tables.
- All radios are TVs.
- All TVs are tables.
Options- A. None follows
- B. All follow
- C. Only I and III follow
- D. Only II and IV follow Discuss
- 10. Statements: All terrorists are guilty. All terrorists are criminals.
Conclusions:
- Either all criminals are guilty or all guilty are criminals.
- Some guilty persons are criminals.
- Generally criminals are guilty.
- Crime and guilt go together.
Options- A. Only I follows
- B. Only I and III follow
- C. Only II follows
- D. Only II and IV follow Discuss
Logical Deduction problems
Search Results
Correct Answer: Only I and IV follow
Explanation:
Since both the premises are universal and affirmative, the conclusion must be universal affirmative and should not contain the middle term. So, it follows that 'All branches are leaves'. Thus, I follows. IV is the converse of this conclusion and so it also holds.
Correct Answer: Only conclusion I follows
Explanation:
It is mentioned in the statement that India's economy depends mainly on forests. This means that forests should be preserved. So, I follows. But, that only preservation of forests can improve the economy, cannot be said. So, II does not follow.
Correct Answer: Only conclusion II follows
Explanation:
Clearly, the statement talks of Company X only and no other company. So, I does not follow. Also, it is mentioned that one can take a good shot even in bad weather conditions with a camera of Company X. So, II follows.
Correct Answer: Only conclusion II follows
Explanation:
The statement is a symbolic one and only II correctly explains it.
Correct Answer: Either I or II follows
Explanation:
The statement asserts that 25 independent M.L.A.s shall join one party only. Thus, they may join XYZ or any other party. So, either I or II follows.
Correct Answer: Only III and IV follow
Explanation:
Since the middle term 'trains' is not distributed even once in the/premises, no definite conclusion follows. However, III is the converse of the second premise while IV is the converse of the first premise. So, both of them hold.
Correct Answer: Only I and III follow
Explanation:
Clearly, it follows that 'All politicians are fair'. I is the converse of the first premise, while III is the converse of the above conclusion. So, both I and III hold.
Correct Answer: Only either I or III follows
Explanation:
Since both the premises are particular, no definite conclusion follows. However, I and III involve only the extreme terms and form a complementary pair. Thus, either I or III follows.
Correct Answer: None follows
Explanation:
Since both the premises are particular, no definite conclusion follows.
Correct Answer: Only II follows
Explanation:
Since the middle term 'terrorists' is distributed twice in the premises, the conclusion cannot be universal. So, it follows that 'Some guilty persons are criminals'. Thus, II holds.
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