In each of the questions below are given four statements followed by four conclusions numbered I, II, Ill and IV. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements
Some symbols are numbers.
Some numbers are letters.
All alphabets are symbols.
All pianos are letters.

Conclusions
I. Some symbols are letters.
II. Some numbers are pianos.
III. No letter is a symbol.
IV. Some symbols are alphabets.

Only I follows

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Only II follows

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Only III and IV follow

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Only IV follows

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Only either I or III and IV follow

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Solution

The correct option is E Only either I or III and IV follow
All alphabets are symbols.
Some symbols are numbers.
$A + I \Rightarrow$ No conclusion
Conclusion IV is the converse of the third premise.
Conclusions I and III form a complementary pair.
Therefore. either conclusion I or Ill follows.

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Similar questions

Q. In each of the questions below, four statements are given followed by four conclusions numbered I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements
Some letters are words.
All words are sentences.
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Some paragraphs are chapters.

Conclusions
I. Some words are paragraphs.
II. Some chapters are letters.
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IV. Some letters are sentences.

Q. In each group of questions below are given three statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows from the statements disregarding commonly known facts.

Statements:-
Some symbols are figures.
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No graphic is a picture.

Conclusions:-
I. Some graphics are figures.
II. No symbol is a picture.

Q. In each question below are two statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance from commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

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No letter is an alphabet.
Some alphabets are words.

Conclusions
I. At least some words are alphabets.
II. At least some letters are words.

Q. In each of the questions below are given four statements followed by three conclusions numbered I, II & Ill. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements
Some keys are locks.
Some locks are numbers.
All numbers are letters.
All letters are words.

Conclusions
I. Some locks are letters.
II. Some words are numbers
III. All numbers are words.

In each of the questions below are given four statements followed by three conclusions numbered I, II and III, You have to take the given statements to be true even if they seem to be at variance from commonly known facts, Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements:-
I. Some letters are glasses.
II. Some glasses are plates.
III. All plates are buses.
IV. All buses are cars.

Conclusions:-
I. Some cars are letters.
II. Some cars are glasses.
III. Some buses are glasses.

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The correct option is E Only either I or III and IV followAll alphabets are symbols. Some symbols are numbers. A+I⇒ No conclusion Conclusion IV is the converse of the third premise. Conclusions I and III form a complementary pair. Therefore. either conclusion I or Ill follows.

The correct option is E Only either I or III and IV follow
All alphabets are symbols.
Some symbols are numbers.
$A + I \Rightarrow$ No conclusion
Conclusion IV is the converse of the third premise.
Conclusions I and III form a complementary pair.
Therefore. either conclusion I or Ill follows.