In an examination, the percentage of students qualified to the number of students appeared from school A is 70%. In school B, the number of students appeared is 20% more than the students appeared from school A and the number of students qualified from school B is 50% more than the students qualified from school A. What is the percentage of students qualified to the number of students appeared from school B? Choose one: A) 30% B) 70% C) 80% D) 87.5% E) None
Solution   Let number of students appeared from school A = 100.   Then, number of students qualified from school A = 70.   Number of students appeared from school B = 120.   Number of students qualified from school B = [150 / 100 x 70] = 105.   Required percentage = [105/ 120 x 100]%   = 87.5%   Answer 87.5%
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In an examination, the percentage of students qualified to the number of students appeared from school A is 70%. In school B, the number of students appeared is 20% more than the students appeared from school A and the number of students qualified from school B is 50% more than the students qualified from school A. What is the percentage of students qualified to the number of students appeared from school B?