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Calculate the total cost of running following electrical devices in the month of September, if the rate of unit of electricity is rupees 6 1)electric heater of 100W for 5hrs daily 2)electric refrigerator of 400W for 10hrs daily |
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Answer» Calculate the total cost of running following electrical devices in the month of September, if the rate of unit of electricity is rupees 6 1)electric heater of 100W for 5hrs daily 2)electric refrigerator of 400W for 10hrs daily |
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