Question

there are 700 students in a school out of which 420 girl.find the percentage of boys in the school

Answer 1

hello here is your answer -

total students=700
total girls =420
so total boys =700-420=280

$percentage \: of \: boys \: in \: shool = \frac{total \: no. \: of \: boys}{total \: studets} \times 100 \\ \\ = \frac{280}{700} \times 100 \\ \\ = 40$
so percentage of boys in school is 40 %


hope it helps you

Answer 2

total number of students = 700
number of girls = 420
number of boys = 700 - 420 = 280

percentage of boys in the school = 280/700 * 100% = 40% (ans)