UP Police Constable Exam Model Paper 5

Question : 74 of 150

Marks: +1, -0

In the following question below some statements are given 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 conclusions logically follows the given statements.
Statement:
I. All cats are dogs II. All dogs are rats Conclusion:
I. Some cats are rats.
II. No cats are rats.

Only conclusion I follows
Both conclusions I and II follow
Only conclusion II follows
Either conclusion I or II follow

Validate

Solution:

Concept:
1) We have to check the conclusions are

100 \%

match with the statement. If the conclusion is

100 \%

match with the given statement then the conclusion is true. If there is a

1 \%

chance of not following the statement then the conclusion is considered to be false.
2) The possibility case can be considered to be "false" in "definite case".
3) In Possibility case, either "can" or "possible" word must be present.
The least possible Venn diagram as per the given statement is as follows:

Conclusion:
I. Some cats are rats

\to

True (as "all cats are dogs and all dogs are rats" given so, some cats are rats true it is definite, hence, true)
II. No cats are rats

\to

False (as "all cats are doges" and "all dogs are rats" given so cats are a part of rats also thus, no cats are rats it is definitely false)
Hence, the correct answer is "Only conclusion I follows". Some cats are rats → All cats are dogs and all dogs are rat so all cats are rats and also if all cats are rats then some cat are rats is definite true.

Some cats are rats

\Rightarrow

All cats are dogs and all dogs are rat so all cats are rats and also if all cats are rats then some cat are rats is definite true.

Go to Question:

Prev Question

Next Question