Question

School 35 boys and 85 girls appeared in an examination The mean marks of boy was found to be 40% where as the mean marks of girl was 50% determine the average marks percentage of the school

Answer 1

boys of school=35

girls................=85

Total student=35+85=120

pass the boys =40%

=35×40%=14

pass the girls=50%

=85×50%=42.5

pass the total students =42.5+14=56.5

pass the percentage of students=(56.5/120)×100=46.25%