Question

How many kilowatt hours of energy did you use if you use your 1200 watt hair dryer for 6 minutes a day for a month

Answer 1

1Kilowatt =1000watts

Now

Energy =Power x time

We need our power in Kilowatt and Our time in hours

Given

Power = 1200Watt

Divide this by 1000... To get its value in Kilowatt

Power = 1.2kilowatt

Time=6min

Divide by 60 to get its value in hours

Time = 6/60hr = 0.1hrs

Energy = 1.2kilowatt x 0.1hrs

=0.12kilowatt hours