Question : Directions: Three statements are given followed by two conclusions numbered I and II. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.
Statements:
All bricks are wall.
Some roads are wall.
All stones are wall.
Conclusions:
I. Some stones are walls.
II. Some walls are bricks.
Option 1: Only conclusion II follows
Option 2: Both conclusions I and II follow
Option 3: Only conclusion I follows
Option 4: Neither conclusion I nor II follows
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Correct Answer: Both conclusions I and II follow
Solution :
Given:
The possible Venn diagram according to the given statements is as follows -
Let's analyse the conclusions –
Conclusion (I):
Some stones are walls – From the Venn diagram, it is evident that the circle of stones is overlapped by the circle of walls. So, this conclusion follows.
Conclusion (II):
Some walls are bricks – From the Venn diagram, it is evident that some parts of the circle representing walls lie inside the circle representing bricks while some lie outside. So, this conclusion follows.
So, both the conclusion follows. Hence, the second option is correct.
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