Question

The given diagram shows the students who picked their favourite colour. What is the fraction of students having their favourite colour red to the total number of students?

• A. $\frac{6}{10}$
• B. $\frac{4}{20}$
• C. $\frac{3}{10}$
• D. $\frac{8}{20}$

Answer 1

The correct option is C $\frac{3}{10}$

Total number of students = 8 + 6 + 2 + 4 = 20
Number of students whose favorite colour is red = 6
The fraction of students having their favorite colour red to the total number of students = $\frac{6}{20}$
Let's write this in simplest form.
Divide numerator and denominator by 2.
Therefore, $\frac{6}{20}=\frac{6÷2}{20÷2}=\frac{3}{10}$