For what values of x does one write the number of x, the amount of x, or the quantity of x?
Learn English – “Amount” vs. “number” vs. “quantity”
numberspremodifiersquantifiersword-choice
numberspremodifiersquantifiersword-choice
For what values of x does one write the number of x, the amount of x, or the quantity of x?
Best Answer
Number is used with plural nouns, things that can be counted.
Amount is normally used for nouns that can't be measured.
But it can also be used for things that can be measured (as @psmears points out below), especially money:
Quantity is used for nouns you can measure.
It is pretty much synonymous with number.