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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?
विकल्प
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 questions below have two/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. Read all the conclusions and then decide which of the given conclusions logically follow from the given statements disregarding commonly known facts.
Statements:
I. All persons who have done any creative work can be responsible critics
II. Z has not done any creative work
III. Therefore __________________
Read the following statement considering them to be true and therefore judge their conclusions numbered I, II and III and given your answer accordingly.
Statements: Some towns are villages. Some villages are lanes. Some lanes are hamlets.
Conclusions:
I. Some hamlets are villages.
II. Some lanes are towns.
III. Some hamlets are towns.
Statement: Good voice is a natural gift but one has to keep practising to improve and excel well in the field of music.
Conclusions:
I. Natural gifts need nurturing and care.
II. Even though your voice is not good, one can keep practising.
Six statements are given. Below them sets of three statements are given. Decide which set has third sentence as logical conclusion of first and second sentences considering the first two statements to be correct.
(A) All apples are pears.
(B) Some pears are mangoes.
(C) Some mangoes are not apples.
(D) All pears are apples.
(E) No mango is a pear.
(F) No apples are mangoes.
Statement: Company X has a record of manufacturing cameras of quality and the latest design so that you do not spoil even a single shot irrespective of the weather conditions.
Conclusions:
I. No other company except X is reputed in the camera industry.
II. Anyone can take an acceptable shot with camera X.
Two statements are given below followed by two conclusions (I and II). You have to consider the two statements to be true even if they seem to be at variance with commonly known facts. You have to decide which of the conclusions if any follow from the given statements.
Statements:
Some books are magazines.
some magazines are novels.
Conclusions:
I. Some books are novels.
II. Some novels are magazines.
Two statements are given below followed by two conclusions (I and II). You have to consider the two statements to be true even if they seem to be at variance with commonly known facts. You have to decide which of the conclusions if any follow from the given statements.
Statements:
All good hockey players are in the Indian hockey team. 'X' is not a good hockey player.
Conclusions:
I. 'X' is not in the Indian Hockey team.
II. 'X' wants to be in the Indian Hockey team.
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.
Argument 1. All envelopes are rectangles. All rectangles are rectangular. All the envelops are rectangular.
Argument 2. Some thin are smart. Some smart things are tiny. Some thin are tiny
Argument 3. Learned are well-read. Well, read know. Learned know.
Argument 4. Dieting is good for health. Health foods are rare. Dieting is rare.
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.
Argument 1. All envelopes are rectangles. All rectangles are rectangular. All envelopes are rectangular.
Argument 2. Some thin are smart. Some smart things are tiny. Some thin are tiny.
Argument 3. Learned are well read. Well read know. Learned know.
Argument 4. Dieting is good for health. Health foods are rare. Dieting is rare.
Two statements are given, followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.
Statements:
All Cups are Plates.
Some Plates are Saucers.
Conclusions:
- All Plates are Cups.
- Some Cups are Saucers.
