Final answer:
To work 125% of an 8-hour day, you multiply 1.25 by 8 hours, resulting in a total of 10 hours worked.
Step-by-step explanation:
If the standard working day is eight hours, and you were to work 125% of a normal day, you need to calculate 125% of 8 hours. To do this, you convert 125% to a decimal by dividing by 100, which gives you 1.25. Then, you multiply 1.25 by 8 hours to find the total hours worked.
Calculating this gives you: 1.25 x 8 hours = 10 hours. So, if you work 125% of a normal 8-hour workday, you would work a total of 10 hours.
This process can be generalized for any percentage increase or decrease. If you want to calculate a certain percentage of a quantity, convert the percentage to a decimal and multiply it by the original quantity.