A light bulb consumes 18900 watt-hours in 5 days and 6 hours. How many watt-hours does it consume per day?
The answer is 3,600.
There's 24 hours in a day and therefore 120 in 5, add 6 gives you 126.
18900/126=150
So 150 kWh used every hour,
150x24= 3600.
So 3600 kWh used every day.
Hope this helps :)