Question : The ratio of the number of boys and girls in a school is 8 : 12. If 50% of boys and 25% of girls are getting scholarships for their studies, what is the percentage of school students who are not getting any scholarships?

Question : In a school, $\frac{5}{12}$ of the number of students are girls and the rest are boys. $\frac{4}{7}$ of the number of boys who are below 14 years of age, and $\frac{2}{5}$ of the number of girls who are 14 years or above 14 years of age. If the number of students below 14

Question : The average mark obtained by 150 students in an examination is 40. If the average marks of passed students are 60 and those of failed students are 20, what is the number of students who passed the examination?

Question : The average mark obtained by 140 students in an examination is 90. If the average mark of passed students is 120 and the number of students who failed in the examination is 90, then what are the average marks of students who failed in the examination?

Question : The ratio of the number of boys to girls in a school is 5 : 2. If 87% of the boys and 80% of the girls passed in the annual exams, then find the percentage of students who failed in the annual exams.