Question

please provide solution

no spamming

Answer 1

Let,
Total students in school = x
fraction of boys = 0.6x
fraction of girls = 0.4x
fraction of girls score more than 40 marks = 0.32x
Total students score more than 40 marks = 0.6x
total numbers of boys score more than 40 marks = 0.28x
fraction of boys score less or equal to 40 marks = 0.32 = 32%