Q340
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 ?
A.
30%
B.
70%
C.
78.5%
D.
87.5%
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Let number of students appeared from school A = 100Then, number of students qualified from school A = 70
Number of students appeared from school B = 120
Number of students qualified from school B :
= × 70
= 105
∴ Required percentage :