What is the ratio of number of boys to number of girls?

The ratio of the number of boys to the number of girls at school is 4:5. What fraction of the students are boys? If there are 120 boys, how many students are there altogether?

What is the true probability of a baby being a girl?

In a certain country, the true probability of a baby being a girl is 0.487. Among the next six randomly selected births in the country, what is the probability that at least one of them is a boy? What is the probability that of two people selected at random at least one was born on a Friday? Socrates owns just one ship.

How many students are in a school with 120 boys?

If there are 120 boys, how many students are there altogether? For every 4 boys there are 5 girls and 9 students at the school. So that means that of the students are boys. of the total number of students is 120 students: If the number of students is 120, then of 120 is of the total number of students.

How many boys and girls passed in an examination?

In an examination, there were 1000 boys and 800 girls. If 60\% of the boys and 50\% of the girls passed. Find the percentage of the failed candidates? 1). In an examination a candidate must secure 40\% marks to pass.

How many of the students in the class are boys?

There are 4 units of boys and 9 units of students. Therefore 4/9 of the students are boys. There are 270 students altogether. Students can multiply the numbers in the first row by 10 to get the second row, and then double that amount to get the third row. Adding the entries in the second and third row gives the fourth row that has the solution.

What is the total number of students in the school?

For every 4 boys there are 5 girls and 9 students at the school. So that means that of the students are boys. of the total number of students is 120 students: If the number of students is 120, then of 120 is of the total number of students. In other words, is the total number of students.