Direction: In each of the question below are three statements following by three conclusions numbered I, II and III. You have to take the three given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusion logically follows from the two statements disregarding commonly known fact.
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Statement:
All brick are stones. Some stones are rocks. All rocks are mountains.
Conclusions:
I. Some mountains are stones.
II. Some mountains are bricks.
III. Some stones are bricks.
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- Only I follow
- Only III follow
- Only I and III follow
- All follow
- None of these
Correct Option: C
Some stones are rocks + All rocks are mountains = I + A = I = Some stones are mountains → conversion → Some mountains are stones (I). Hence II follows. All brick are stones + Some stones are mountains = A + I = No conclusion Hence II does not follow. All brick are stones (A) → conversion → Some stone are bricks(I). Hence III follows.
