Calculate the total cost of running the following electrical devices in the month of
Channel: Doubtnut
Date: 2020-04-12

Calculate the total cost of running the following electrical devices in the month of September, if the rate of 1 unit of electricity  is ₹6.00.    (i) Electric heater of 1000 W for 5 hours daily.   (ii) Electric refrigerator of 400 W for 10 hours daily.