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21-10-2020
Mathematics

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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 students in the class? *

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u2aditya u2aditya

21-10-2020

Answer:

21

Step-by-step explanation:

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21-10-2020

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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