Logical Reasoning - Logical Deduction - Discussion

Discussion Forum : Logical Deduction - Section 1 (Q.No. 13)
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.


13.

Statements: No gentleman is poor. All gentlemen are rich.

Conclusions:

  1. No poor man is rich.
  2. No rich man is poor.
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:
The first premise is an E-type proposition, So, the middle term 'gentleman' forming the subject is distributed. The second premise is an A-type proposition. So, the middle term 'gentlemen' forming the subject is distributed. Since the middle term is distributed twice, the conclusion cannot be universal. Since one premise is negative, the conclusion must be negative. Thus, it follows that 'Some rich men are not poor'. Thus, neither I nor II follows.
Discussion:
22 comments Page 2 of 3.

Mee said:   10 years ago
I don't understand. How can gentleman be distributed in both cases?

Nishu said:   1 decade ago
How to solve these types of premises?

Can anybody help.

Keerthi said:   5 years ago
(rich (gentle) ) (poor).

So, Option E is correct.
(2)

KIran said:   7 years ago
Can someone explain with a venn diagram? please.

Lathasree said:   7 years ago
Yes, Please someone explain with Venn diagram.

Nidhi said:   5 years ago
I agree with Keerthi, the answer should be E.
(1)

Shubhasri said:   1 decade ago
Can some one explain with venn diagram?

Akash said:   1 decade ago
Which are major and minor premises?

Kartik said:   5 years ago
Option E is the correct answer.
(1)

Charmi said:   8 years ago
Thanks for clearing my doubt.


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