In a primary school class, the ratio of boys to girls is 3:4. If there are 12 girls in the class, what is the total number of st
udents in the class? *
2 answers:
Answer:
21
Step-by-step explanation:
A ratio of 3:4 means that for every 3 boys there are 4 girls and vice versa.
12 girls / 4 girls = 3
3 boys * 3 = 9 boys
There are 9 boys in the class.
9 boys + 12 girls = 21 total students
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