There are 120 girls and 57 boys in school .if 5% of the girls leave and no new pupils admited .what parcentage of boys in whole school
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given , no of girls = 120 & no. of boys = 57
then , total students = 120 + 57 = 177
no of girls leave = 5 × 177 ÷ 100 = 8.85
so now , no .of total students = 177 -8.85 = 168.15
now percentage of total boys = 57÷168.15×100 = 33.89
hope it will help...
then , total students = 120 + 57 = 177
no of girls leave = 5 × 177 ÷ 100 = 8.85
so now , no .of total students = 177 -8.85 = 168.15
now percentage of total boys = 57÷168.15×100 = 33.89
hope it will help...
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