# (Online Course) CSAT Paper – II : Logical Reasoning & Analytical Ability: Assertion & Reason

## Assertion & Reason

According to the dictionary, ‘Assertion’ refers to stating or
claiming something forcefully and that of Reason is fact. This test is meant to
judge the candidate’s knowledge and with it the aim is to determine his ability
to reason out correctly.

Under, we shall deal with the combination of Assertion and
Reason and relate with each other in order to find their correct coordination.
Here, four alternative comments on these are given and the correct one is to be
chosen. This is again an important feature of logical reasoning. Following
illustrations will fully illustrate the type of such questions

Directions (Q. Nos. 1 to 3) In each of the illustrations questions, there
are two statements labelled as Assertion (A) and Reason (R). Mark your answer as
(a) if both A and R are true and R is the correct explanation of A
(b) if both A and R are true but R is not the correct explanation of A
(c) if A is true but R is false
(d) if A is false but R is true

## Example 1

Assertion (A): Most of ancient civilisations grew near
the rivers.
Reason (R): The main occupation of man was agriculture.
Solution. The Assertion is correct because most of the ancient
civilisations grew near the rivers as land over there was fertile and water was
easily available. But the Reason is not the correct explanation of the Assertion
Hence, option (b) is true.

## Example 2

Assertion (A): Seeds should be treated with fungicide
solution.
Reason (R): Seeds do not germinate, unless treated with fungicide
solution.
Solution: Seeds are treated with fungicide before sowing to avoid seed
borne disease. But, it is not a true fact that unless seeds are treated with
fungicide solution, they cannot germinate. Hence, option (c) is true.

## Example 3

Assertion (A): Appendix is a vestigial organ in the
human body.
Reason (R): It does not participate in digestion.
Solution: We know that, appendix is a vestigial organ in the human body
and does not participate in digestion.Hence, both Assertion and Reason are
correct and Reason fully explains Assertion. Hence, option as (a) is our answer.