Subject: mathqa
Question: in an examination , the percentage of students qualified to the students appeared from school ' p ' is 70 % . in school ' q ' , the number of students appeared is 30 % more than the students appeared from school ' p ' and the number of students qualified from school ' q ' is 50 % more than the students qualified from school ' p ' . what is the % of students qualified to the number of students appeared from school ' q ' ?
Option: 
A: 80.72 %
B: 80.79 %
C: 80.76 %
D: 80.74 %
Answer: C