Discussion
Home ‣ Logical Reasoning ‣ Logical Deduction See What Others Are Saying!
- Question
Statements: Some spoons are bowls. All bowls are knives. All knives are forks.
Conclusions:
- All spoons are forks.
- All bowls are forks.
- Some knives are bowls.
- Some forks are spoons.
Options- A. Only II and III follow
- B. Only II and IV follow
- C. Only III and IV follow
- D. All follow
- E. None of these
- Correct Answer
- None of these
ExplanationIII is the converse of the second premise and so it holds.Some spoons are bowls. All bowls are knives.
Since one premise is particular, the conclusion must be particular and should not contain the middle term. So, it follows that 'Some spoons are knives'.
All bowls are knives. All knives are forks.
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 bowls are forks'. Thus, II follows.
Some spoons are knives. All knives are forks.
Since one premise is particular, the conclusion must be particular and should not contain the middle term.
So, it follows that 'Some spoons are forks'. IV is the converse of this conclusion and so it follows.
Hence, II, III and IV follow.
More questions
- 1. Statement: 'Guests should be provided lunch.' - A tells B.
Assumptions:
- Unless told, lunch may not be provided.
- Guests will stay during lunch time.
Options- A. Only assumption I is implicit
- B. Only assumption II is implicit
- C. Either I or II is implicit
- D. Neither I nor II is implicit
- E. Both I and II are implicit Discuss
Correct Answer: Both I and II are implicit
Explanation:
Since both I and II follow from the statement, so both are implicit.- 2. Which word does NOT belong with the others?
Options- A. dodge
- B. flee
- C. duck
- D. avoid Discuss
Correct Answer: flee
Explanation:
Dodge, duck, and avoid are all synonyms meaning evade. Flee means to run away from.- 3. Statement: Should agriculture in rural India be mechanized?
Arguments:
- Yes. It would lead to higher production.
- No. Many villagers would be left unemployed.
Options- A. Only argument I is strong
- B. Only argument II is strong
- C. Either I or II is strong
- D. Neither I nor II is strong
- E. Both I and II are strong Discuss
Correct Answer: Only argument I is strong
Explanation:
Clearly, mechanization would speed up the work and increase the production. So, argument I is strong enough. Argument II is vague because mechanization will only eliminate wasteful employment, not create unemployment.- 4. 28 25 5 21 18 5 14
Options- A. 11 5
- B. 10 7
- C. 11 8
- D. 5 10
- E. 10 5 Discuss
Correct Answer: 11 5
Explanation:
This is an alternating subtraction series with the interpolation of a random number, 5, as every third number. In the subtraction series, 3 is subtracted, then 4, then 3, and so on.- 5. Look at this series: (1/9), (1/3), 1, ____ , 9, ... What number should fill the blank?
Options- A. (2/3)
- B. 3
- C. 6
- D. 27 Discuss
Correct Answer: 3
Explanation:
This is a multiplication series; each number is 3 times the previous number.- 6. Statements: The serious accident in which a person was run down by a car yesterday had again focused attention on the most unsatisfactory state of roads.
Conclusions:
- The accident that occurred was fatal.
- Several accidents have so far taken place because of unsatisfactory state of roads.
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
Correct Answer: Both I and II follow
Explanation:
Since the accident has caused concern, it must be fatal. So, I follows. The use of the word 'again' in the statement justifies the fact mentioned in II. So, II also follows.- 7. Statement: Should there be reservation in Government jobs for candidates from single child family?
Arguments:
- No. This is not advisable as the jobs should be offered to only deserving candidates without any reservation for a particular group.
- Yes. This will help reduce the growing population in India as the parents will be encouraged to adopt single child norm.
Options- A. Only argument I is strong
- B. Only argument II is strong
- C. Either I or II is strong
- D. Neither I nor II is strong
- E. Both I and II are strong Discuss
Correct Answer: Neither I nor II is strong
Explanation:
The Government has already made provisions for reservation of jobs for the economically backward sections, which is a must. So, abolishing the practice of reservation altogether has no meaning. Thus, argument I is vague. Also, more reservations would lead to non-recruitment of many more deserving candidates. Besides, such a reservation, if implemented, will cater to the job requirements of only a small section of population and not a major part of it. So, argument II also does not hold strong.- 8. Statement: Whenever you have any doubt on this subject, you may refer to the book by Enn and Enn.
Assumptions:
- The book by Enn and Enn is available.
- There is no other book on this subject.
Options- A. Only assumption I is implicit
- B. Only assumption II is implicit
- C. Either I or II is implicit
- D. Neither I nor II is implicit
- E. Both I and II are implicit Discuss
Correct Answer: Only assumption I is implicit
Explanation:
The recommendation of the book by Enn and Enn implies that it is available. So, I is implicit. Also, the book has been referred to as a good one, but this does not mean that no other books are available on the subject. So, II is not implicit.- 9. Statements: All pencils are birds. All birds are skies. All skies are hills.
Conclusions:
- All pencils are hills.
- All hills are birds
- All skies are pencils.
- All birds are hills.
Options- A. Only I and II follow
- B. Only I and III follow
- C. Only III and IV follow
- D. All follow
- E. None of these Discuss
Correct Answer: None of these
Explanation:
All pencils are birds. All birds are skies.Since both the premises are universal and affirmative, the conclusion must be universal affirmative (A-type) and should not contain the middle term. So, it follows that 'All pencils are skies'.
All birds are skies. All skies are hills.
As discussed above, it follows that 'All birds are hills'. Thus, IV follows.
All pencils are skies. All skies are hills.
Clearly, it follows that 'All pencils are hills'. Thus, I follows.
Hence, I and IV follow.
- 10. Statement: In one of the worst accidents in railway level crossing, fifty people died when a bus carrying them collided on to a running train.
Courses of Action:
- The train driver should immediately be suspended.
- The driver of the bus should be tried in court for negligence on his part.
- The railway authority should be asked to man all its level crossings.
Options- A. None follows
- B. Only I and II follow
- C. Only III follows
- D. Only II and III follow
- E. None of these Discuss
Correct Answer: Only III follows
Explanation:
The problem discussed in the statement is not regarding the current accident, but to do something to avert such mishaps. Accidents at railway crossings can be averted by deploying men to regulate traffic and installing barriers to check traffic movement when a train passes by. So, only III follows.
Comments
There are no comments.
- 1. Statement: 'Guests should be provided lunch.' - A tells B.
More in Logical Reasoning:
Programming
Copyright ©CuriousTab. All rights reserved.