Question

Question 9
A certain household has consumed 250 units of energy during a month. How much energy is this in joules?

Answer 1

1 unit of energy is equal to 1 kilowatt hour (kWh).
1 unit = 1 kWh
$1kWh=3.6\times {10}^{6}J$
Therefore, 250 units of energy $=250\times 3.6\times {10}^6=9\times {10}^{8}J$.