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Logical Reasoning - Logical Deduction - Discussion

Discussion Forum : Logical Deduction - Section 1 (Q.No. 14)
Logical Deduction
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.

14.

Statements: Some swords are sharp. All swords are rusty

Conclusions:

  1. Some rusty things are sharp.
  2. Some rusty things are not sharp.
Only conclusion I follows
Only conclusion II follows
Either I or II follows
Neither I nor II follows
Both I and II follow
Answer: Option
Explanation:
Since one premise is particular, the conclusion must be particular and should not contain the middle term. So, I follows. Since both the premises are affirmative, the conclusion cannot be negative. Thus, II does not follow.
Discussion:
24 comments Page 2 of 3.
Ardhendu said:   1 decade ago
Both the statements are valid conclusions as per the Venn diagrams, please check it.
Manahil said:   4 weeks ago
I think answer should be both because some rusty things are sharp or some are not.
Avinash said:   4 years ago
Since this question is only about sharpness, So, only 1 will follow.
Navneet S said:   1 decade ago
Both would follow I think :)

any correction comments please.
Vidhi said:   1 decade ago
These are complementary pairs so both should follow?
Raman Singh said:   9 years ago
Can anybody explain why option C is not correct?
Nidhi said:   5 years ago
According to me, it will follow both.
Abhi said:   9 years ago
E is correct as both statements obey.
(1)
Saumya Gupta said:   5 years ago
I think E should be the answer.
(5)
Shobhit said:   8 years ago
E should be the correct answer.
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