Question

A light bulb consumes 3600 watt-hours per day. How many watt-hours does it consume in 5 days and 18 hours?

Answer 1

1 day equals 24 hours.

18 hours / 24 hours = 0.75 days

The total days is 5.75 days.

Multiply the amount the bulb uses in 1 day by 5.75 days:

3600 x 5.75 = 20,700 watt-hours.