Q) Let x:y be the ratio of the total number of books on dramatics to the total number of books in the library. then which of the following is certainty true?
a) 1/6 b) 1/4 < x/y
c) 1/4 > x/y
d) x/y < 1/5

here x = total number of books in dramatics
y = total number of books (I. e other books + books of dramatics )
y = 18600 + x 18600 = total number of other books