Lightbulb consumes 12,600 Watt- hours in 3 days and 12 hours. How many watt- hours does it consume per day

3 days = 72 hours + 12 hours = 84 hours

12600 watt hours / 84 hours

= 150 watt hours / 1 hour

It’s asking how many watt hours consumed per day. We know 150 watt hours per hour so multiply that by 24 because 24 hours in a day

= 3600 watt hours per day