Question 731740: in a school the students ratio of boys : girls is 3:5
there are 450 boys.
work out the total of students in the school Answer by lenny460(1073) (Show Source):
You can put this solution on YOUR website! In a school the students ratio of boys : girls is 3:5
There are 450 boys.Work out the total number of students in the school ?
There are 450 boys.
Let the number of girls be x.
Therefore:
3/5 = 450/x
Cross multiply
3x = 2250
x = 750
There are 750 girls.
The total number of students:
