A lightbulb consumes 1440 watt-hours per day. How many watt-hours does it consume in 4 days and 12 h

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A lightbulb consumes 1440 watt-hours per day. How many watt-hours does it consume in 4 days and 12 hours?

1 day is 24 hours.

4 days is 24 * 4 = 96 hours.

So we have 96 hours + 12 hours = 108 hours