The enrolled strength of a class is 40. If 36 boys have passed then the number of passed and failed...

In a class, there are 225 students. Which of the following cannot be the ratio of the number of sutdents passed to the number of students failed?

The average marks of 48 students in a class is 45. the average marks of the boys in the class is 40 and average marks of the girls in the class is 50. what is the ratio between the numbers of boys and the number of girls in the class ?

p% of the students of a class passed the exam. g% of the passed students are girls and b% of the fail students are boys. The percentage of passed boys over the failed girls is :

The ratio of boys and girls in a class is 5:3.20% of the boys and 60% of the girls have passed in first class. What percentage of the class has passed in first class ?

In a certain examination, the number of those who passed was 4 times the number of those who failed. If there had been 35 fewer appeared candidates and 9 more had failed, the ratio of passed and failed candidates would have been 2:1, then the total number of candidates was

In a school, 60% of the numberof students are boys and the rest are girls. If 20% of the number of boys failed and 65% of the number of girls passed the examination, then the percentage of the total number of students who passed is: