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?

1.1 × 104 kilowatt hours
36 kilowatt hours
18 kilowatt hours
540 kilowatt hours
1.1 × 106 kilowatt hours

Option A

1.1 × 104 kilowatt hours

Explanation:

Consumption in Kwh is given by multiplying hourly consumption by the number of hours worked, in this case 2 hours. Assuming that in all the 30 days the daily consumption is constant then we shall get Kwh as

answerscientific theory;

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