1. In a class composed of x girls y boys what part of the class is composed of girls ?
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By: anil on 05 May 2019 01.52 am
No. of girls in class=x.
No. of boys in class=y.
Part of the class is composed of girls=$$frac{No. of girls}{No. of students}$$.
$$=frac{No. of girls}{No. of girls+No. of boys}$$
$$=frac{x}{x+y}$$
Hence, Option C is correct.
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No. of boys in class=y.
Part of the class is composed of girls=$$frac{No. of girls}{No. of students}$$.
$$=frac{No. of girls}{No. of girls+No. of boys}$$
$$=frac{x}{x+y}$$
Hence, Option C is correct.