what is the quantity adjective in this sentence.( There are three boys in the room.)

Which do you think it is?

I think it is room because three is a number adjective.

The word, "room" is a noun. The quantity adjective is "three."

The quantity adjective in the sentence "There are three boys in the room" is "three."

To identify the quantity adjective in a sentence, you need to look for an adjective that describes how many or how much of something there is. In this case, "three" answers the question "How many boys are there?" Therefore, "three" is the quantity adjective in the sentence.