There are 120 girl and 57 boys in a school.If 5 percentage of the girl leave and no new pupils are admitted, what percentage of the whole school will be boys
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6
girl=120
boy=57
120×5%=6
now girl =120-6=114
total student=57+114=117
so percentage of boy=(57/171)×100=33and1/3%
or 33.33% approximately
boy=57
120×5%=6
now girl =120-6=114
total student=57+114=117
so percentage of boy=(57/171)×100=33and1/3%
or 33.33% approximately
Answered by
4
No. of girls = 120
No. of boys = 57
Total Student = 177
5 % girls left
5 × 120 /100 = 6
Total girls left =6
Hence total no. if girls = 114
Total student = 114 + 57 = 171
% of boys = No. of boys × 100 / Total Students
% of boys = 57 × 100 / 171
Hence % of boys = 33.33 %
No. of boys = 57
Total Student = 177
5 % girls left
5 × 120 /100 = 6
Total girls left =6
Hence total no. if girls = 114
Total student = 114 + 57 = 171
% of boys = No. of boys × 100 / Total Students
% of boys = 57 × 100 / 171
Hence % of boys = 33.33 %
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