Practice Library
All MCQs
Browse exam-wise, subject-wise, and country-wise MCQs with explanations.
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Correct Answer: A. No snakes are warm-blooded.
Explanation:
Snakes are included among reptiles.
Since reptiles are not warm-blooded, neither are snakes.
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Correct Answer: D. Some phones are insured.
Explanation:
The expensive phones fall within the insured-item category.
Thus, some phones are insured.
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Correct Answer: C. Some writers are not careless.
Explanation:
The writers who are poets cannot be careless.
Therefore, some writers are not careless.
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Correct Answer: B. All laptops require energy.
Explanation:
Laptops belong to the machine set, and machines require energy.
Therefore, laptops require energy.
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Correct Answer: A. Some artists are not silent.
Explanation:
The artists who are singers cannot be silent.
Thus, some artists are not silent.
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Correct Answer: D. No definite conclusion about red buses follows.
Explanation:
The red vehicles might not be buses.
The information does not force any bus to be red or not red.
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Correct Answer: C. It cannot be concluded whether any mango is sour.
Explanation:
The sour fruits may be mangoes or other fruits.
The premises give no certain relation between mangoes and sourness.
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Correct Answer: B. Some windows are not metal.
Explanation:
The transparent windows cannot belong to the metal category.
Therefore, some windows are not metal.
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Correct Answer: A. Some students are disciplined.
Explanation:
The students who are athletes must be disciplined.
Thus, at least some students are disciplined.
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Correct Answer: D. No musician is dull.
Explanation:
Musicians are a subset of creative people.
Since creative people are not dull, musicians are not dull.
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Correct Answer: C. Some cars do not use petrol.
Explanation:
The cars identified as electric do not use petrol.
Therefore, some cars do not use petrol.
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Correct Answer: B. No cup is edible.
Explanation:
Every cup belongs to the container class.
Since containers are not edible, cups cannot be edible.