an electric heater of 1000watt is used for 3hr a day.what is the cost of using it for a month of 25days the cost of 1unit is Rs 4.
Answers
Answered by
1
Power is 1000W or 1 kW
Time is 3 hours (in one day)
Energy consumed in one day = P x t
= 1 kW x 3 hrs
= 3kWh or 3 units
Energy consumed in 25 days = 3kWh x 25
= 75 kWh or 75 units
Cost of 1 unit is Rs. 4
So cost of 75 units is 75 x Rs.4
= Rs. 300(Ans)
Time is 3 hours (in one day)
Energy consumed in one day = P x t
= 1 kW x 3 hrs
= 3kWh or 3 units
Energy consumed in 25 days = 3kWh x 25
= 75 kWh or 75 units
Cost of 1 unit is Rs. 4
So cost of 75 units is 75 x Rs.4
= Rs. 300(Ans)
Similar questions