Logical Reasoning - Logical Deduction - Discussion
Discussion Forum : Logical Deduction - Section 1 (Q.No. 15)
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.
15.
Statements: All fishes are grey in colour. Some fishes are heavy.
Conclusions:
- All heavy fishes are grey in colour.
- All light fishes are not grey in colour.
Answer: Option
Explanation:
Since one premise is particular, the conclusion must be particular and should not contain the middle term. So, it follows that 'Some heavy things are grey in colour'. I is a cumulative result of this conclusion and the first premise. Thus, only I holds.
Discussion:
39 comments Page 3 of 4.
Ila said:
1 decade ago
Conclusion should be D as the premises is particular so the conclusion should also be particular.
Tanveer said:
8 years ago
The correct answer is A. No, matter what a fish is (heavy or not), it's grey in colour.
(1)
Diana said:
5 years ago
Based on both AEIO method and Venn diagram method, the correct answer is D.
Suraj said:
2 years ago
How is the answer A?
The premise nowhere says that all fishes are heavy.
The premise nowhere says that all fishes are heavy.
(1)
Raju said:
9 years ago
Even I think the answer is D. Can someone tell it in venn diagram method?
Sneha priya said:
5 years ago
Here, the correct statement is "some heavy fishes are grey in colour".
(3)
Piyush baghla said:
1 decade ago
A --- is correct.
Just make a Venn diagram to understand this.
Just make a Venn diagram to understand this.
Dr. Mangai said:
8 years ago
I too think D is the right option with the Ven Diagram method.
Abhishek rao said:
1 decade ago
Some fishes are heavy does not mean all heavy fishes are grey.
Dushyant ingle said:
9 years ago
I think both are correct because light fish are not grey.
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