Question

60%are boys in school and 120are girls how many students in school
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Answer 1

no.of girls=120 in school

no.of boys in school=60/100×120=6×12=72

Answer 2

Answer:

let the no. of students be x

%of boys in the school=60%

%of girls in the school=40%

no of girls =120

40%of x =120

x=(120×100)÷40=300

so 300 students are their in the school