Question

in a house following appliances are working for tube lights of 40 w for eight hours daily two fans of 60 w each for 10 hours daily one tv of 200w for eight hours daily calculate the total consumption per dayand for month

Answer 1

$$\begin{gathered} \mathrm{Total}\mathrm{consumption}\mathrm{per}\mathrm{day}: \\ \mathrm{Energy},\mathrm{E}=\left(4\times 40\times 8\right)+\left(2\times 60\times 10\right)+\left(1\times 200\times 8\right) \\ =4080\mathrm{Wh} \\ =4.08\mathrm{kWh} \\ =4.08\mathrm{units} \\ \mathrm{Consumption}\mathrm{per}\mathrm{month}: \\ \mathrm{Energy},\mathrm{E}=30\times 4080 \\ =122400\mathrm{Wh} \\ =122.4\mathrm{kWh} \\ =122.4\mathrm{units} \end{gathered}$$