Logical Reasoning - Logical Deduction - Discussion
Discussion Forum : Logical Deduction - Section 1 (Q.No. 2)
Directions to Solve
In each question below are given two statements followed by two conclusions numbered I and II. You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. Read the conclusion and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.
Give answer:
- (A) If only conclusion I follows
- (B) If only conclusion II follows
- (C) If either I or II follows
- (D) If neither I nor II follows and
- (E) If both I and II follow.
2.
Statements: All bags are cakes. All lamps are cakes.
Conclusions:
- Some lamps are bags.
- No lamp is bag.
Answer: Option
Explanation:
Since the middle term 'cakes' is not distributed even once in the premises, no definite conclusion follows. However, I and II involve only the extreme terms and form a complementary pair. So, either I or II follows.
Discussion:
57 comments Page 2 of 6.
Vik said:
1 decade ago
So. If the task were to find SP conclusion - then there should be no conclusion since M was undistributed in both premises.
However, if we draw some circles - we will see that either I or II follows. (that is why we cannot make SP conclusion. But can solve this task).
However, if we draw some circles - we will see that either I or II follows. (that is why we cannot make SP conclusion. But can solve this task).
Williams said:
8 years ago
The law of syllogism takes two conditional statements and forms a conclusion by combining the hypothesis of one statement with the conclusion of another. Here is the general form:
P U Q.
Q U R.
Therefore, P U R.
Therefore the answer to the above question is D.
P U Q.
Q U R.
Therefore, P U R.
Therefore the answer to the above question is D.
Jvd said:
3 years ago
Why is it not option B?
The second statement can be rewritten as "All lamps are not cakes". "not cakes" would refer to anything that isn't cake, including bags. This would give us one of the many possible variations of the statement: "All lamps are not bags".
The second statement can be rewritten as "All lamps are not cakes". "not cakes" would refer to anything that isn't cake, including bags. This would give us one of the many possible variations of the statement: "All lamps are not bags".
(4)
Naveed said:
1 decade ago
According to the rule book to the Deduction.
Rule: Atleast one middle term in the premise should be distributed to give conclusion. If both are undistributed then no conclkusion.
In the given question both are undistributed hence no conclusion.
Rule: Atleast one middle term in the premise should be distributed to give conclusion. If both are undistributed then no conclkusion.
In the given question both are undistributed hence no conclusion.
Siddhant said:
9 years ago
Why we are not taking a possibility when the lamp circle is surrounded by bag circle and bag circle by cake circle since also fulfils the condition all lamps are cakes and all bags are cakes?
Hence the answer to the solution should be C.
Hence the answer to the solution should be C.
Vipin said:
1 decade ago
Only the 1st conclusion follows. The two statements are universal affirmative, so in this case the answer should be either universal affirmative or particular affirmative, there can't be a negative statement as conclusion.
Zafrul islam said:
1 decade ago
Let us assume that bag=X, cake=Y & lamp=Z, then from d question it is clearly indicated that X=Y & Z=Y, that means either some X=Z
or it may be no terms of z match with the x terms.So c is correct option.
or it may be no terms of z match with the x terms.So c is correct option.
Kapil said:
1 decade ago
This question has multiple choices if we go by venn diagram approach. So we must go by selecting the middle term approach which give us unique answer with no conclusion can be drawn as mid term is not distributed.
Isaac Neebo said:
2 years ago
I think D is the right answer:
All Bags(B)=Cakes(C)
All Lamps (L)=Cakes(C)
Therefore all B = L
This is a form of Hypothetical syllogism.
So any answer different from this does not follow logically.
All Bags(B)=Cakes(C)
All Lamps (L)=Cakes(C)
Therefore all B = L
This is a form of Hypothetical syllogism.
So any answer different from this does not follow logically.
(9)
Namita Naikwadi said:
6 years ago
As per given rules for deriving conclusion from two given premises, rule no. 9 is if both premises are universal, conclusion must be universal. So how can be answer C? I think, it should be D.
(1)
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