The variable assumes a decimal value, hence it is a rational number.
<h3>What are continuous and discrete variables?</h3>
Continuous variables: Can assume decimal values, hence they are represented by rational numbers.
Discrete variables: Assume only countable values, such as 1, 2, 3, …, hence they are represented by whole numbers, or even integers if it can be negative.
In this problem, the time assumes a value of 0.25, which is decimal, hence it is a continuous number, that is rational.
