if 70% of the student in a school are boys and the number of girls is 420 then the number of boys is
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Answer:
your answer is 980
Step-by-step explanation:
let total no. of students = X
70%of X = no.of boys
70X/100 = 7X/10
no.of boys + no.of girls = total no.of students
7X/10 + 420 = X
7x+4200/10 = X
7x + 4200 = 10x
4200 = 3x
X = 4200/3 = 1400
no.of boys = 1400 - 420
= 980
HOPE it will help you
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