Question:
The number of students playing Football from School C is x percent of the total number of students playing Football from all the schools x equals:

Option A):
20(2/9)
Option B):
19(4/9)
Option C):
19(7/9)
Option D):
18

Correct Answer is Option B):
19(4/9)

Explanation:
x= (175/900)*100%,
x= 175/9 %,
x= 19(4/9)%.