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Read the given statements and conclusions carefully. You have to take the given statements to be true even if they seem to be at variance from commonl
Question

Read the given statements and conclusions carefully. You have to take the given statements to be true even if they seem to be at variance from commonly known facts and decide which conclusion(s) logically follow(s) from the given statements.
Statements:
(I) All doors are gates.
(II) No door is a lock.
Conclusions:
(I) Some locks are gates
(II) No lock is a door.

A.

Only conclusion (I) follows

B.

Only conclusion (II) follows

C.

Both conclusion (I) and (II) follows

D.

Neither conclusions (I) nor (II) follows.

Correct option is B

Given: 
Statements:
(I) All doors are gates.
(II) No door is a lock.
From the above statement following Venn diagram will be - 
Conclusions:
(I) Some locks are gates (False, there is no direct relationship given between locks and gates. It cannot be concluded that some locks are gates.)
(II) No lock is a door. (True, it directly follows that no lock is a door because this is explicitly stated in the premise.)
Correct answer is (b) only conclusion (II) follows.

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