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. $\dfrac{g}{{b + g}}$
C. $\dfrac{b}{g} $
D. $\dfrac{{b + g}}{b}$

Answer 1

Hint: Here first we have to find the total number of students in the school. In this question we have to use the formula of finding the ratio like we can find the ratio with the help of a formula that is the $\dfrac{\text{of boys in the class}}{\text{total number of students in the school}}.

Complete step-by-step answer:
We have
Boys in the school = b
Girls in the school = g
First, we have to find the total number of students in the school
So, the total number of students in the school = boys in the school + girls in the school
Total number of students in the school = b + g
As the question says we have to find the ratio of boys to the total number of students
${\text{Ratio}}$ = $\dfrac{\text{boys in the class}}{\text{total number of students in the class}}$.
Putting the values in the formula
${\text{Ratio}}$ = $\dfrac{b}{{b + g}}$
Now we have the ratio of boys to the total number of students in the school which is
$\dfrac{b}{{b + g}}$.
Hence, option A is the correct answer.

Note: Here students get confused while finding the ratio of boys over the total number of students in the school as in the question number of students is not given. Use the correct method for finding the ratio.