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In a school 5/8 of the students were girls if the no of girls is 120 more than that of the boys what is the strength of the school how many boys are there



Let the number of students be x
no. of girls=5x/8
no.of boys=3x/8
therefore x=480
no of boys is 3(480)/8=180
11 4 11
When such type of questions are asked let the quantity be variableand then solve it 
             no.of students = x =>girls=5/8x and boys=1-(5/8x)=3/8x
             but 5/8x=120+3/8x
             =>x=480  =>boys=180 and girls=300
3 5 3
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