Final answer:
To find the number of boys in a school where 4 out of every 7 students are girls, multiply 3/7 by the total number of students.
Step-by-step explanation:
To find the number of boys in the school, we need to subtract the number of girls from the total number of students. Since 4 out of every 7 students are girls, 3 out of every 7 students are boys. Therefore, if there are 84 students in total, we can calculate the number of boys by multiplying 3/7 by 84:
Number of boys = (3/7) * 84 = 36
So, there are 36 boys in the school.
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