Most Brazilian citizens are fluent speakers of Portuguese. Some Brazilian citizens speak Japanese. Therefore, some Brazilian citizens are bilingual (i.e., can speak two
languages).
Which of the following describes the conclusion above?
A) The conclusion given above follows conclusively from the stated premises.
B) The conclusion follows from the premises, but it cannot represent the actual situation in Brazil, since the premises cannot both be true.
C) Since the premises of this argument are true, and the conclusion does not follow from them, we can infer that all Brazilian citizens are monolingual (i.e., speak only
one language).
D) Since the conclusion of this argument is true, and it follows from the premises, we can infer that the premises are also true.
E) The conclusion of this argument does not follow from the premises, but we cannot thereby infer anything about the truth of either the premises or the conclusion.
Please explain..
[spoiler] IMO : D
OA : E[/spoiler]
Brazilian citizens
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Ankur87 wrote:Most Brazilian citizens are fluent speakers of Portuguese. Some Brazilian citizens speak Japanese. Therefore, some Brazilian citizens are bilingual (i.e., can speak two
languages).
Which of the following describes the conclusion above?
A) The conclusion given above follows conclusively from the stated premises.
B) The conclusion follows from the premises, but it cannot represent the actual situation in Brazil, since the premises cannot both be true.
C) Since the premises of this argument are true, and the conclusion does not follow from them, we can infer that all Brazilian citizens are monolingual (i.e., speak only
one language).
D) Since the conclusion of this argument is true, and it follows from the premises, we can infer that the premises are also true.
E) The conclusion of this argument does not follow from the premises, but we cannot thereby infer anything about the truth of either the premises or the conclusion.
Please explain..
[spoiler] IMO : D
OA : E[/spoiler]
Suppose the population of Brazil is 100, now there can be a situation :-
a) Most Brazilian citizens are fluent speakers of Portuguese :- 80 people speak exclusively
Portuguese.
b) Some Brazilian citizens speak Japanese :- 20 people speak exclusively Japanese.
The above scenario invalidates the stated conclusion.
Therefore choice E is correct since all other choices states that the conclusion is true.
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