Answer with explanation:
Option A: In any Class, the ratio of boys to girls should be 50:50.
⇒Fraction of girls out of 352 eleventh graders, of whom 173 are girls
[tex]=\frac{173}{352}\\\\=0.4914[/tex]
= 49.14 %
Number of Boys = 352 - 173
= 179
⇒Fraction of Boys out of 352 eleventh graders, of whom 179 are Boys
[tex]=\frac{179}{352}\\\\=0.5085[/tex]
= 50.85 %
% of number of Boys to Percent of girls are approximately same.
Correct Option
Option B
[tex]=\frac{150}{511}\times 100\\\\=29.35[/tex]
In a school 29.35% of students can't be boys only.Also, this question is unclear in the sense that, number of sections of students is not given.
Incorrect Option
Option C
In any Class, the ratio of boys to girls should be 50:50.
⇒Fraction of boys out of 523 eleventh graders, of whom 173 are boys
[tex]=\frac{173}{523}\\\\=0.3307[/tex]
= 33.07%≠50%
Incorrect Option
Option D
[tex]=\frac{182}{376}\\\\=0.4840[/tex]
=48.40%
Number of section of girls is not given.And in any school , out of 376 girls, 48.40% girls can't be eleventh graders only.
Incorrect Option
Option A: Out of the 352 eleventh graders at the school, 173 of them are girls.
