Problema Solution
the ratio of boys to girls in Mr. Larry class is 2 to 3. If there are 30 total students in the class,how many more girls are in the class than boys?
Answer provided by our tutors
Let
x = the number of boys in the class
y = the number of girls in the class
The ratio of boys to girls is 2 to 3:
x : y = 2 : 3 cross-multiply
2y = 3x
The total number of students is 30:
x + y = 30
We have the following system of equations:
x + y = 30
2y = 3x
........
click here to see the system of equations solved for x and y
........
x = 12 boys
y = 18 girls
18 - 12 = 6
There are 6 more girls than boys.