3days12
Given that a light bulb consumes 960 watt-hours per day, this can be expressed as:
960 watt-hours = 1 day
In order to get the time it takes to consume 3360 watt-hours, this can be expressed as:
3360 watt-hours = x
Divide both expressions
[tex]\begin{gathered} \frac{960}{3360}=\frac{1}{x} \\ 960x=3360 \\ x=\frac{3360}{960} \\ x=3.5\text{ days} \end{gathered}[/tex]Convert to days and hours
Note that 1 day = 24 hours
0.5 day = 12 hours
Hence the time it will take to consume 3360 watt-hours is 3 days 12 hours
