Final answer:
The cost of using the electric iron for 10 hours would be 6000 shillings.
To calculate the cost of using an electric iron rated 240V, 2000W for 10 hours, convert the power to kilowatts, calculate the energy consumed in kilowatt-hours, and multiply it by the cost per kilowatt-hour.
Step-by-step explanation:
To calculate the cost of using an electric iron for 10 hours, we need to first calculate the energy consumed in kilowatt-hours (kWh). In order to do this, we can use the formula:
E = P * t
Here, E represents the energy consumed, P represents the power in kilowatts (kW), and t represents the time in hours. So, for the given electric iron with a power of 2000W and used for 10 hours:
E = 2kW * 10h
= 20kWh
Next, we can calculate the monetary value of this energy by multiplying it with the cost per kilowatt-hour. In this case, the cost is 300 shillings per kilowatt-hour:
Cost = 20kWh * 300 shillings/kWh
= 6000 shillings
Therefore, the cost of using the electric iron for 10 hours would be 6000 shillings.