Question

Chethan is fastest runner this part of speech

Answer 1

Explanation:

comparative degree fastest

Answer 2

Answer - This sentence comes under the superlative degree of comparison.

Explanation:

Under, the part's of speech one of the most significant part is the degree of comparison.

There are three degrees of comparison.

* Positive Degree.

* Comparative Degree.

* Superlative Degree.

Positive Degree of comparison is used when we want to state a fact or a mere statement. This same sentence can be written as

"Chetan is a fast runner."

Comparative Degree of comparison is used when we want to bring about a sense of comparison between two things or two individuals

For Example, Chetan is a faster runner than Rohan.

Superlative Degree of comparison used when we want to state that a thing or a person is the best.

For Example, Chetan is the fastest runner.

Note - In the question the axillary verb 'The' isn't used. Which doesn't makes it grammatically incorrect. We have to always use 'The' so, that we can state a thing or a person as specifically  'the best'

I hope my answer was helpful,

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