Question

an electric refrigerator rated 400w operates 8 hours a day 4 bulbs each rated 60w are lighted 6 hours a day each an iron box rated 600w is used 2 hours a day what is the cost of the energy to operate in m/o September if rate of a unit is Rs 3?,,,,,,,,,,,,,,,,, please answer my question ​

Answer 1

Explanation:

Energy of one day =Power×Time=400W×8h=3.2KWh

Energy of 30 days =3.2KWh×30=96KWh

So, cost of the energy =96×3=Rs.288