31.
An electric refrigerator rated 400 W is used for 8 hours a day. An electric iron
box rated 750 W is used for 2 hours a day. Calculate the cost of using these
appliances for 30 days, if the cost of 1 kWh is Rs. 3/-.
(its 10th class question)
Answers
Answered by
1
Energy of one day = Power × Time
=400W×8h
=3.2KWh
Energy of 30 days =3.2KWh×30
=96KWh
So, cost of the energy =96×3
=Rs.288
keep smiling ❣️
Similar questions