A household refrigerator consumes electrical energy at the rate of 200 W. lf electricity costs 5 k per kWh, calculate the cost of operating the appliance for 30 days.
-
A.
N7.20 -
B.
N12.00 -
C.
N30.00 -
D.
N33.33 -
E.
N72.00
Correct Answer: Option A
Explanation
E = 200 x 30 x 24 Wh = 144000; Wh = 144KWh
Cost 144 x 5k = N7.20