Question

in a class 60% of the students are girls there are 18 girls in the class. how many students are in the class and how many boys are in the class? Show Work

Answer 1

There are 30 students and 12 boys

Answer 2

60%-------> 18
40℅------>?
100%------>?

to find the answers first divide 18 by 60=0.3, now we know the number for 1%
now workout the 40% by multiplying it by 40%
0.3×40= 12
so the number of boys is 12
to find the total add the no. boys and girls.
12+18=30 so the total number of pupils is 30.

hope it helps