Question

A certain household had consumed 250 units of energy during a month. How much energy is this in joule.

Answer 1

1 unit of energy is equal to 1 kilowatt hour (kWh).
1 unit = 1 kWh
1 kWh = 3.6 x J
Therefore, 250 units of energy = 250 x 3.6 ×  = 9 x  J.

Answer 2

Energy in units consemed= 250
Energy=250
=250*1000wh
E=250*1000*60*60
E=9*10^8J