Peter increased the amount of crunches he did from 32 to 36. By what percentage did Peter increase the amount of crunches he completed? ?
Responses
A 20%20%
B 12.5%12.5%
C 22.5%22.5%
D 30%
The original amount of crunches Peter did was 32 and the increased amount was 36. To find the percentage increase, we can use the formula:
((New value - Original value) / Original value) * 100
Plugging in the values, we get:
((36 - 32) / 32) * 100 = (4 / 32) * 100 = 0.125 * 100 = 12.5%
Therefore, Peter increased the amount of crunches he completed by 12.5%.
The answer is B) 12.5%
To find the percentage increase, we can use the formula:
Percentage increase = (Change in value / Initial value) * 100
In this case, the change in value is 36 - 32 = 4. The initial value is 32.
Percentage increase = (4 / 32) * 100 = 12.5%
Therefore, the answer is B. Peter increased the amount of crunches he completed by 12.5%.
To calculate the percentage increase, you need to find the difference between the new and old number, and then divide that difference by the old number. Finally, multiply by 100 to get the percentage.
Here's how you can do it for this problem:
1. Find the difference between the new and old numbers: 36 - 32 = 4.
2. Divide the difference by the old number: 4 / 32 = 0.125.
3. Multiply the result by 100 to get the percentage: 0.125 * 100 = 12.5.
Therefore, the percentage increase is 12.5%.
So, the correct answer is B) 12.5%.