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

Answer

`9 xx 10^(8) J`

Explanation

1unit of energy is equal is equal to 1 kilowatt hour (kWh)
1 unit = 1 kWh
1 kWh `= 3.6 xx 10^(6) J`
Therefore, 250 units of energy `= 250 xx 3.6 xx 10^(6) = 9 xx 10^(8) J`.