One hour per day is used by a 5000 watt refrigerator. Calculate the whole amount of power consumed in 60 days.

Electric power is the rate at which an electric current works. 

Electric energy (E) = Electric power (P) x Time (t)

1 unit of energy = 1 kilowatt-hour = 1KWh

Given that:

Power , P = 5000 watt

Time = 60 days

The refrigerator is used for 1 hr per day.

So total time, $\text{t= 60×1 hr = 60 hr}$

Energy, 

E = P x t 

   = 5000 x 60 

   = 300000 watt-hour

   = 300 kilowatt-hour

   = 300 units