Final answer:
To find the percentage of pencils that are not sharpened, subtract the number of sharpened pencils from the total, giving 125 unsharpened pencils, then divide this by the total pencils and multiply by 100, resulting in 62.5% unsharpened.
Step-by-step explanation:
To calculate the percentage of pencils that are not sharpened, we first need to know the total number of pencils that are unsharpened. Since there are 200 pencils in total and 75 of them are sharpened, the remaining pencils are:
Total pencils - Sharpened pencils = Unsharpened pencils
200 - 75 = 125
Now that we have the number of unsharpened pencils, we can find out the percentage by dividing the number of unsharpened pencils by the total number of pencils and then multiplying by 100.
(Number of unsharpened pencils / Total pencils) × 100 = Percentage of unsharpened pencils
(125 / 200) × 100 = 62.5%
So, 62.5% of the pencils are unsharpened.