The number of students playing Badminton from School E is x% of the students playing Badminton From School B. Then x equal:
The number of students playing Badminton from School E is x% of the students playing Badminton From School B. Then x equal: Correct Answer 50
$$\eqalign{& x\% \text{ of } 130 = 65 \cr& \Rightarrow \frac{x\times130}{100} = 65 \cr& \Rightarrow x = 50 \cr} $$