Each of the following sentences in this section has a blank space, followed by four options. Select the most appropriate option to fill in the blank and mark your response on the Answer Sheet accordingly. There are __________ thirty students inside the classroom at any time.

Step-by-step solution

The noun 'students' is a countable noun. In formal English grammar, 'fewer' is used with countable nouns, whereas 'less' is used with uncountable nouns. The comparative form is followed by the conjunction 'than', not 'then'. Therefore, the correct phrase to fill in the blank is 'fewer than'. Answer: fewer than