In these questions two or three statements followed by two conclusions numbered I and II have been given. You have to take the given statements to be true even if they seem to be at variance from the commonly known facts and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.
Statements :
Some mountains are hillocks.
Some mountains are rivers.
Some mountains are valleys.
Conclusions :
I. All mountains are either hillocks or rivers or valleys.
II. No valley is rivers.
The venn diagram for above statements is :
Conclusions :
I. All mountains are either hillocks or rivers or valleys = false
II. No valley is rivers = may or may not be true
Thus, neither Conclusion I nor II follows.
=> Ans - (B)
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