Question

Of the 75 teachers at a school, 20 teach math. Around what percent ofthe teachers at the school teach math?

Answer 1

the percent of x out of n is given by

$\frac{x}{n}\times100\text{ \%}$

In this case,

$x=20,n=75$

Therefore,

$\frac{20}{75}\times100\text{ \%}=\frac{4}{15}\times100\text{ \%}=\frac{400}{15}\text{ \%}=\frac{80}{3}\text{ }\approx27\text{ \%}$

Hence, the percent of the teachers at the school teach math 27 %