Question 26484
Let number of large type pages be "x"
Then number of small type pages is "21-x"
# of words on large type pages is 1800x
# of words on small type pages is 2400(21-x)
EQUATION:
# of words + # of words = 48000
1800x+2400(21-x)=48000
1800x+59400-2400x=48000
-600x=-2400
    x=4 (# of pages with large type)