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प्रश्न
Choose the most appropriate option for the following question.
No parrots are black.
All crows are black.
From the above premises which one of the following conclusions is true?
पर्याय
No conclusion can be drawn.
No crows are parrots.
Some parrots are not crows
Some crows are not parrots.
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उत्तर
No crows are parrots.
Explanation:
The Venn diagram is as follows:

So, No crows are parrots is true.
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संबंधित प्रश्न
The question contains two statements and two conclusions numbered I and II.
You have to take the two given statements to be true even if they seem to be at variance from commonly known facts and decide which of the given conclusion(s) logically follow(s) from the two given statements.
Answer (1) If only conclusion I follows.
Answer (2) If only conclusion II follows.
Answer (3) If neither I nor II follows.
Answer (4) 1 f both I and II follows.
Statements:
I. Some players are singers.
II. All singers are tall.
Conclusions:
I. Some players are tall.
II. All players are tall.
Considering given statements as true, select a logical conclusion based on the given statements.
Statements:
- Some cats are animals.
- All plants are animals.
- All animals are plants.
Conclusions:
- Some cats are plants.
- All plants are animals.
- All animals are cats.
- All plants are cats.
Considering given statements as true, select a logical conclusion based on the given statements.
Statements:
- All mangoes are fruits.
- No fruit is an apple.
- Some apples are vegetables.
- Some fruits are carrots.
Conclusions:
- No mango is an apple.
- Some vegetables are not apples.
- Some mangoes are carrots.
- Some vegetables are apples.
Considering given statements as true, select a logical conclusion based on the given statements.
Statements:
- Some Q are E.
- All E are D.
- No D is A.
Conclusions:
I. Some Q are not A.
II. Some Q are not D.
III. All Q are D.
IV. No Q is A.
Statement: The Government of country X has recently announced several concessions and offered attractive package tours for foreign visitors.
Conclusions:
I. Now, more foreign tourists will visit the country.
II. The Government of country X seems to be serious in attracting tourists.
Four arguments are given. Each is a set of three sentences. Decide which set has third sentence as logical conclusion of first and second sentences considering the first two to be correct.
I. God is human. Some humans are fragile. God is fragile.
II. Some MBA is employed. All employed are aliens. Some MBA is aliens.
III. All jacks are spades. Some kings are diamonds. Some kings are spades.
IV. All humans are fragile. God is not human. God is not fragile.
In the question, a few statements are followed by four conclusions numbered I, II, III and IV. Consider the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusion(s) and then decide which of the given conclusion(s) logically follow(s) from the given statements.
Statements:
- All rackets are jackets.
- No cow is cat.
- Only cats are dogs.
Conclusions:
- Some rackets are not cats.
- Some cats are jackets.
- Some rackets are cats.
- No dog is a cow.
In the question given below two statements numbered I and II. You have to take the two given statements as true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follow from the given statements, disregarding commonly known facts.
I: Karan Johar is a good director
II: Directors are intelligent.
The question contains four arguments of three sentences each Choose the set in which the third statement is a logical conclusion of the first two.
(1) No moon is red. All stars are the moon. All stars are not red.
(2) All doors are open. No open is outdoors. All doors are not outdoors.
(3) No Japanese can fire. All Chinese are books. Japanese and Chinese can fight.
(4) No A is B. No B is C. No A is C.
The question below is given three statements followed by three conclusions I, II, and III. You have to take the given statements to be true even if they seem to be at variance with 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
- All keys are locks.
- All locks are bangles.
- All bangles are cars.
Conclusions
- Some cars are locks.
- Some bangles are keys.
- Some cars are keys.
