In a school there are between #24 and 40# students in a class. In one class the ratio of #" boys : girls "# is # 4 : 7# How many students are there in that class?
2 Answers
There are 12 boys and 21 girls for a total of 33 students
Explanation:
Since there aren’t going to be fractions of people we can just count up using the whole numbers in the ratio and then check if the sum is between 24 and 40.
Let’s begin:
There are 12 boys and 21 girls for a total of 33 students
There are
Explanation:
If you divided the class into groups with
The total number of students in the class therefore must be a multiple of
The only multiple of
There are therefore