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artcher [175]
3 years ago
11

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 a

re in the class? Show Work
Mathematics
2 answers:
kobusy [5.1K]3 years ago
7 0
There are 30 students and 12 boys

d1i1m1o1n [39]3 years ago
3 0
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


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The key to solve this problem is using a system of equations.

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