Question

The fees for a computer course is increased from $30 to $ 36 per month. Find the percentage increase in the fee.

Answer 1

ANSWER:

20%

STEP-BY-STEP EXPLANATION:

To calculate the percentage of increase, we must take into account the original and final value, we have both values, therefore, we calculate the increase as follows:

$\begin{gathered} 36=30+30\cdot x \\ \text{ We solve for x:} \\ 30x=36-30 \\ x=\frac{6}{30}=\frac{1}{5} \\ x=0.2 \\ \text{ In percentage form it would be:} \\ 0.2\cdot100=20\text{\%} \end{gathered}$

The percentage increase in the fee is 20%