Question

60 went into a machine and 72 came out.What percent increase did this machine use?

Answer 1

From this question, we can deduce he following:

Original value = 60

New value = 72

Let's find the percentage increase.

To find the percentage increase, apply the formula below:

`\text{ Percent increase = }\frac{New\text{ value - old value}}{old\text{ value}}\ast100`

Thus, we have:

`\begin{gathered} \text{Percent increase = }(72-60)/(60)\ast100 \\ \\ \text{Percent increase = }(12)/(60)\ast100 \\ \\ \text{Percent increase = }0.2\ast100 \\ \\ \text{Percent increase = 20 \%} \end{gathered}`

Therefore, the percent increase is 20%.

ANSWER:

20%