Question 43

In each of the following question below are given some statements followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusion logically follows the given statements.

Statements:

I. All insects are dangerous.
II. All machines are dangerous.

Conclusions:

I. All dangerous are insects.
II. All dangerous are machines.
III. Some machines are insects.

Solution

The venn diagram for the statements all insects are dangerous and all machines are dangerous is :

Here, all dangerous are neither insects nor machines, thus the first two conclusions are not true.

Also, some machines may or may not be insects, so conclusion III does not follow.

Thus, no conclusion follows.

=> Ans - (D)

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