Question
If the original price of a book is $20 and it increases to $25, what is the percent increase?
A
30%
B
20%
C
50%
D
25%
Answers
GPT-4o mini
To calculate the percent increase, you can use the formula:
\[
\text{Percent Increase} = \frac{\text{New Price} - \text{Original Price}}{\text{Original Price}} \times 100
\]
In this case, the original price is $20 and the new price is $25. Plugging in these values:
\[
\text{Percent Increase} = \frac{25 - 20}{20} \times 100 = \frac{5}{20} \times 100 = 0.25 \times 100 = 25\%
\]
So, the percent increase is **D) 25%**.
\[
\text{Percent Increase} = \frac{\text{New Price} - \text{Original Price}}{\text{Original Price}} \times 100
\]
In this case, the original price is $20 and the new price is $25. Plugging in these values:
\[
\text{Percent Increase} = \frac{25 - 20}{20} \times 100 = \frac{5}{20} \times 100 = 0.25 \times 100 = 25\%
\]
So, the percent increase is **D) 25%**.