If electrical energy costs Rs.3/-per unit, calculate the cost of using the following appliances in one day: . Using a 3KW heater for 12 hours in one day. . Using a 120W colour TV for 6 hours.
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total energy consumed = power x time = (3X12)kwh = 36 kwh
total cost = Rs(36x3)=108
total cost = Rs(36x3)=108
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