When drive-ins were at the height of their popularity in the late 50's , some 4000 existed in the United States, but today there are less than one-quarter that many
B. there are fewer than one quarter as many
c. there are fewer than one quarter of that amount
D.the number is less than one quarter of that amount
E. it is less than one quarter of that amount
This is from Sahil's notes. Will you explain please?
We can easily elliminate C,D and E, besides otther issues, use of 'amount'.
Now A and B. I like the use of 'fewer' in A because driven-ins are countable nouns but B uses 'as' and its use somehow I can not digest.
Even though they say fewer is used for countable nouns but I'm not sure this always applies. For instance:
I have less than 20 bucks in my pocket.
My friend is not as tall as it seems, he is less than 6.1.
So, because A sounds better to my ears. I would go with A.