Since there are the same number of students in year 7 and year 8, let's assume there are 100 students in each year.
In year 7, 51% of 100 students are girls, which means 49 students are boys.
In year 8, 45% of 100 students are girls, which means 55 students are boys.
Therefore, in year 7 and year 8 combined, there are 49 + 55 = 104 boys out of 200 students.
The fraction of boys out of the total students is 104/200, which simplifies to 13/25.
Therefore, 13/25 of the students in year 7 and year 8 combined are boys.
There are exactly the same number of students in year 7 as in year 8.
51% of year 7 students are girls.
45% of year 8 students are girls.
What fraction of year 7 and year 8 combined are boys?
(Write the answer in its simplest form.)
1 answer
1 answer