if three appliances fan bulb and iron of power 40 watt 100 watt and 250 watt are used for 10 , 5 and 1 hours daily respectively then calculate total amount of electricity bill for 28 days at 2.5 rupees per unit
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40*10=400 Watts
500 Watts
250 Watts.
=1150 Watts a Day
Total Cost: 1150*28*2.5
=80,500 Rupees!
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