in a domestic circuit five 40 watt bulb are used for 3 hours and are 100 w bulb is used for 1 hour daily. there are 3 fans (50w each ) and they are used 10 hours daily. claculate the energy conumed in a month of 30 days and total cost of one unit is RS - 3.50.
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Answer:
2.5 PER UNIT
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