Correct Answer - Option 1 : 50
Given:
The number of students that appeared from school A is 20% more than the number of students that appeared from school B.
The total number of students that passed from both schools is 80% more than the number of students that passed from school B.
Calculation:
Let be the number of students who appeared in the examination from school B is 100.
According to the question the number of students who appeared in the examination from school A = 120% of 100
⇒ 120
Number of students passed from school B = 100 × (75/100)
⇒ 75
Total number of students passed in school A and school B = 75 × (180/100)
⇒ 135
The number of students passed in school A = 135 – 75
⇒ 60
The number of students passed in school A percentage = (students pass in school A)/(Total students appeared in school A)
⇒ (60/120) × 100
⇒ 50%
∴ The percentage of students that passed from school A to those who appeared from school A is 50%.