A washing machine uses 1.8 × 105 watts of power. If it is in use for 2 hours per day (on average), how many kilowatt hours will it use in 30 days?
Select one of the options below as your answer:

A.
1,100 kilowatt hours
B.
36 kilowatt hours
C.
18 kilowatt hours
D.
540 kilowatt hours
E.
1.1 × 106 kilowatt hours

Question

A washing machine uses 1.8 × 105 watts of power. If it is in use for 2 hours per day (on average), how many kilowatt hours will it use in 30 days?
Select one of the options below as your answer:

    A.
    1,100 kilowatt hours
    B.
    36 kilowatt hours
    C.
    18 kilowatt hours
    D.
    540 kilowatt hours
    E.
    1.1 × 106 kilowatt hours

souvik · Answer

how many kilowatt hour par day?

anonymous · Answer

The machine is used for 60 hours (2*30) in 30 days. The power is 180 kW
So energy utilized = power * time =10800 kWh