Final answer:
The electric energy consumed by a 1200 W electric iron used for 30 minutes daily in April is calculated by converting power to kilowatts and time to hours, then multiplying by the number of days in April, resulting in 18 kWh. Option A is the correct answer.
Step-by-step explanation:
To find the electric energy consumed by a 1200 W electric iron used for 30 minutes every day during the month of April, we can use the formula:
Energy (kWh) = Power (kW) × Time (h)
First, we convert the power from watts to kilowatts:
1200 W = 1.2 kW
Then, we convert the time from minutes to hours:
30 minutes = 0.5 hours
Since April has 30 days, the total energy consumed in April is:
Energy = 1.2 kW × 0.5 hours/day × 30 days = 18 kWh
The correct option is A. 18 kWh.