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mj

· started a discussion

· 1 Months ago

correct? (Question: 107799.3 )

plz explain

Question:
DIRECTIONS: In each of these questions, there are given three statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read both the conclusions and then decide which of the given conclusions logically follows from the given statement disregarding commonly known facts. 

Statements: 

I. No Incisor are Canine.

II. Some Canine are not Premolar.


Conclusions: 

I. All Premolar can be Incisor.

II. No Premolar is Incisor.

Options:
A) If only conclusion I follow. 
B) If only conclusion II follows. 
C)

If either conclusion I or II follows; 

D) If neither conclusion I nor II follows; 
E)

If both the conclusions I and II follow:   

Solution:
Ans: (a) The basic diagram for the given statements is


∴ Only I follows.

kanhaiya jha

· commented

· 1 Months ago

Statements:
I. No Incisor are Canine.
So, from this we know that we can not make any relationship between Incisor and Canine.
II. Some Canine are not Premolar.
From this, we know that some Canine are not Premolar but we can not say from this that Some canine are premolar, yes its possibility but not true...

Conclusions:
I. All Premolar can be Incisor.(we do not have any direct relationship given in the statement between Premolar and Incisor so we can not say that these two can not make any relationship between them....So this conclusion follows because possibility asking so it can be )
II. No Premolar is Incisor.(Here the Copula 'is' is used which means it has to be but no statement indicates that it has to be...Thats why this conclusion does not follow..)

Hence, Only Conclusion I follows...

Now in your mind the word will be moving is: why 'either or' is not answer....

So please note one thing is : Some + No = either or.....not All+No...
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