A light bulb consumes 1440 watt-hours per day. How many watt-hours does it consume in 5 days and 12 hours? watt-hours

Step 1 ：The problem is asking for the total watt-hours consumed by a light bulb in a certain period of time. Given that the light bulb consumes 1440 watt-hours per day, we can calculate the total watt-hours consumed in 5 days and 12 hours by multiplying the daily consumption by the total number of days.

Step 2 ：However, we need to convert the 12 hours into a fraction of a day. Since there are 24 hours in a day, 12 hours is equivalent to 0.5 days. Therefore, the total number of days is 5.5.

Step 3 ：Let's denote the daily consumption as \(daily\_consumption = 1440\) and the total number of days as \(total\_days = 5.5\).

Step 4 ：We can calculate the total consumption as \(total\_consumption = daily\_consumption \times total\_days\).

Step 5 ：The total watt-hours consumed by the light bulb in 5 days and 12 hours is calculated as 7920 watt-hours.

Step 6 ：Final Answer: The light bulb consumes \(\boxed{7920}\) watt-hours in 5 days and 12 hours.