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Question

There are $$b$$ boys and $$g$$ girls in a class. The ratio of the number of boys to the total number of students in the class is:

A
$$\dfrac{b}{b+g}$$
B
$$\dfrac{b+g}{b}$$
C
$$\dfrac{g}{b+g}$$
D
$$\dfrac{b}{g}$$
Solution
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Correct option is A. $$\dfrac{b}{b+g}$$
Given number of boys in the class $$=b$$
Number of girls in the class $$=g$$
Total number of students in the class $$=b+g$$
$$\therefore$$ Ratio of boys to total number of students $$=$$ Number of boys: Total students
$$\begin{aligned}&=b:(b+g) \\&=\frac{b}{b+g}\end{aligned}$$

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