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.
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Explanation:
1 month=30 days
electric heater for day=4800
4800×6=28800rupees
electric refrigerator
810×6=4860rupee
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Explanation:
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.
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