Question

In a school there are 10 electric fan each of 40W runs for 5 hours a day, 5 electric lamp each of 60 watt runs for 3 hours daily. If the cost of each unit be Rs 5, then calculate the monthly costs of electricity.



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Answer 1

Explanation:

Electrical energy consumed by the bulb per day = P x t = 60 W x 6h = 360 Wh

1 unit = 1 kW h = 1000 W h

1 W h = (1/1000) unit

360 W h = 0.360 unit

Electrical energy consumed by the bulb per day = 0.36 unit

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Answer 2

Electrical energy consumed by the bulb per day = P x t = 60 W x 6h = 360 Wh

1 unit = 1 kW h = 1000 W h

1 W h = (1/1000) unit

360 W h = 0.360 unit

Electrical energy consumed by the bulb per day = 0.36 unit

please mark as brainliest answer