# In a house, 5 bulbs of 40W, 4 bulbs of 1000 W and 750W refrigerator are used for 5 hours daily. Thn how much energy is consumed per day?

Jul 23, 2018

The energy consumed daily is$= 24.75 k W h$

#### Explanation:

The power installed is

$P = \left(5 \cdot 40\right) + \left(4 \cdot 1000\right) + \left(750\right) = 4950 W$

The time is

$t = 5 h$

The energy consumed daily is

$E = P t = 4950 \cdot 5 = 24750 W h = 24.75 k W h$

Jul 23, 2018

The energy consumed per day is $24.75 \text{kiloWatt" * "hours}$.

#### Explanation:

$5 \cdot 40 W + 4 \cdot 1000 W + 1 \cdot 750 W = 4950 W$
The power company measures energy in $\text{kiloWatt" * "hours}$.
$4.95 \text{kiloWatt" * 5 "hours" = 24.75 "kiloWatt" * "hours}$