Statements: 1. All laptops are computers. 2. Some computers are tablets. 3. All tablets are devices. Conclusions: I. Some laptops are devices. II. Some computers are devices. Which conclusion(s) logically follow? MCQ with Answer and Explanation
Statements:
1. All laptops are computers.
2. Some computers are tablets.
3. All tablets are devices.
Conclusions:
I. Some laptops are devices.
II. Some computers are devices.
Which conclusion(s) logically follow?
A. Neither I nor II follows
B. Both I and II follow
C. Only conclusion II follows
D. Only conclusion I follows
Answer: Option C
Solution (By JKSSB Mock Tests)
There is no direct connection given between laptops and tablets/devices, so Conclusion I does not follow. Since some computers are tablets, and all tablets are devices, those computers must be devices. Thus, Conclusion II follows.
Statement:
Consuming too much sugar leads to obesity and diabetes.
Conclusions:
I. Sugar should be completely banned.
II. People who consume less sugar are completely safe from diabetes.
Which conclusion(s) logically follow?
Explanation:
The statement highlights the danger of 'too much' sugar, not sugar in general, making a total ban (I) an illogical extreme. Also, diabetes could be caused by genetics or other factors, so consuming less sugar does not guarantee 'complete safety' (II). Neither follows.
Statements:
1. All cars are vehicles.
2. Some vehicles are not machines.
Conclusions:
I. Some cars are not machines.
II. All vehicles are cars.
Which conclusion(s) logically follow?
Explanation:
We know all cars are vehicles, but the vehicles that are not machines might be entirely outside the 'cars' circle. Therefore, Conclusion I is not definite. Conclusion II is a reverse of an 'All' statement, which is generally invalid. Neither follows.
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