Verbal Reasoning - Syllogism - Discussion

Discussion Forum : Syllogism - Syllogism 1 (Q.No. 2)
Directions to Solve

In each of the following questions two statements are given and these statements are followed by two conclusions numbered (1) and (2). 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 conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.

Give answer:

  • (A) If only (1) conclusion follows
  • (B) If only (2) conclusion follows
  • (C) If either (1) or (2) follows
  • (D) If neither (1) nor (2) follows and
  • (E) If both (1) and (2) follow.

2.

Statements: All the harmoniums are instruments. All the instruments are flutes.

Conclusions:

  1. All the flutes are instruments.
  2. All the harmoniums are flutes.

Only (1) conclusion follows
Only (2) conclusion follows
Either (1) or (2) follows
Neither (1) nor (2) follows
Both (1) and (2) follow
Answer: Option
Explanation:
Discussion:
70 comments Page 2 of 7.

Hanuman said:   5 years ago
@Ravinder.

Can you explain Raval Notations with example?

Hemil Sutariya said:   6 years ago
It's simple.

It says all the instruments (A) are flutes (B). But all the flutes (B) may not be instruments (A).

Basically flutes (B) includes all instruments (A) but instruments (A) does not includes all flutes (B).

Asif said:   6 years ago
Very easy Simple trick for inner and outer circle problem.

If we move from inner to outer circle two conclusions are correct (all+some), whereas if we move from outer to inner only (some) conclusion is correct.

All flutes are instruments (we are moving from outer to inner so only "some" conclusion correct), all harmonious are flute (we are moving from inner to outer hence in conclusion wherever "all and some come that is correct).
(1)

Arpan said:   6 years ago
According to me, E is the correct answer.

Shubhangi s said:   6 years ago
E is the correct option.

Jahnavi said:   6 years ago
Yes! the answer must be E.

Narvinder said:   6 years ago
I think it is E.

Nad said:   6 years ago
Ans is E I think.

Anish said:   7 years ago
I think the answer is E.

The diagram in explanation shows only one situation that harmoniums are making a portion of instruments. But as per set theory, the complete set is also a subset of the given set. It can also be true that if all harmoniums are instruments, all instruments are also harmonium. Similarly in the second sentence.

In such case, option E is the answer.

Chetan said:   7 years ago
Short method is 100 & 50 method.
By Ashwin sir (IAS aspirant).


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