# A college professor teaches a class of 80 students. Fourteen students are business majors, six are education majors and the rest are undecided. What percentage of the class is undecided?

**Given :**

Total number of students in the class $= 80$

Number of students from business majors $=14$

Number of students from education majors $=6$

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**To do :**

We have to find the percentage of the class that is undecided.

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**Solution : **

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$Number of students undecided =$

$\Rightarrow Number of students in the class - (Number of students in business majors + Number of students in education majors)$

$Number of students undecided = 80 - (14 + 6)$

$ = 80 - 20$

$ = 60$

$Undecided percentage in class = \frac{Number of students undecided}{Total number of students in class}\times 100$

$ = \frac{60}{80} \times 100$

$= \frac{6}{8} \times 100$

$= \frac{3}{4} \times 100$

$ = 3 \times 25$

$ = 75$%

**Therefore, the percentage of class undecided is 75%.**

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