Question

Out of $36$ students in a class, $9$ participate in a classical dance,$12$ participate in English debate and the remaining participated in a singing competition.

Find the ratio of number of students participated in singing competition to the total number of students.

Answer 1

Given:

Total students$=36$

The number of students participated in a classical dance $=9$

The number of students participated in the English debate $=12$

The number of students participated in singing competition$=36-9-12=15$

The ratio of the number of students participated in singing competition to the total number of students$=\frac{15}{36}$

$$\begin{gathered} =\frac{5}{12} \\ =5˸12 \end{gathered}$$

Hence, the ratio of the number of students participating in singing competition to the total number of students is $5˸12$.