Question
Last month, when Joe took his puppy to the veterinarian, the puppy weighed 5 pounds. This month, the puppy weighed 7.5 pounds. What is the percentage increase of the weight of the puppy?
A.
67%
B.
50%
C.
3%
D.
33%
A.
67%
B.
50%
C.
3%
D.
33%
Answers
Answered by
GPT-4o mini
To calculate the percentage increase in the puppy's weight, you can use the following formula:
\[
\text{Percentage Increase} = \left( \frac{\text{New Weight} - \text{Old Weight}}{\text{Old Weight}} \right) \times 100
\]
In this case, the old weight is 5 pounds and the new weight is 7.5 pounds.
1. Calculate the increase in weight:
\[
\text{Increase} = 7.5 \text{ pounds} - 5 \text{ pounds} = 2.5 \text{ pounds}
\]
2. Now use the percentage increase formula:
\[
\text{Percentage Increase} = \left( \frac{2.5 \text{ pounds}}{5 \text{ pounds}} \right) \times 100 = 0.5 \times 100 = 50\%
\]
Therefore, the percentage increase in the weight of the puppy is **50%**.
So, the correct answer is **B. 50%**.
\[
\text{Percentage Increase} = \left( \frac{\text{New Weight} - \text{Old Weight}}{\text{Old Weight}} \right) \times 100
\]
In this case, the old weight is 5 pounds and the new weight is 7.5 pounds.
1. Calculate the increase in weight:
\[
\text{Increase} = 7.5 \text{ pounds} - 5 \text{ pounds} = 2.5 \text{ pounds}
\]
2. Now use the percentage increase formula:
\[
\text{Percentage Increase} = \left( \frac{2.5 \text{ pounds}}{5 \text{ pounds}} \right) \times 100 = 0.5 \times 100 = 50\%
\]
Therefore, the percentage increase in the weight of the puppy is **50%**.
So, the correct answer is **B. 50%**.