The average pass percentage of girls in class XII examination in a school is 80 and that of boys is 75. The average pass percentage in class XII of that school is 76.5. Find the percentage of the number of boys in class XII of the school.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 70%.
Boys : Girls = 3.5 : 1.5 = 7 : 3
Boys percentage = (7/10) × 100 = 70%