There are 120 girls and 57 boys in a school. if 5% of the girls leave and no new pupils are admitted, what percentage of the whole School will be boys?
Answers
Answered by
43
Given
In a school 120 girls and 57 boys
And 5% of 120=120*5/100=6
So now girls are 120-6=114
And total no.. Of students =girls+boys
=114+57=171
% of boys in school=57*100/171
=33.33%
In a school 120 girls and 57 boys
And 5% of 120=120*5/100=6
So now girls are 120-6=114
And total no.. Of students =girls+boys
=114+57=171
% of boys in school=57*100/171
=33.33%
Answered by
18
5% of girls = 5/100×120
= 6 girls
120 - 6 = 114
total = 114 + 57
= 171
percent of} = 57/171×100
boys}
=33.33%
percent of}
girls}=114/171×100
=66.67%
we can check whether it is right or wrong by adding both.
=33.33+66.67
=100
so, the answer is correct.
= 6 girls
120 - 6 = 114
total = 114 + 57
= 171
percent of} = 57/171×100
boys}
=33.33%
percent of}
girls}=114/171×100
=66.67%
we can check whether it is right or wrong by adding both.
=33.33+66.67
=100
so, the answer is correct.
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