calculate the electric bill amount for a month of 31 days if the following devise are used as specified bulb of 40W for 6hrs , 4 tubelight of 50W for 8 hrs .A TV of 120W for 9hrs . Give the rate of electricity is rs 2.50per unit
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Answer:
Step-by-step explanation:
Energy used by :-
Bulb = 0.04 X 2 X 6 = 0.48 units
Tube lights = 0.05 X 2 X 8 = 0.8 units
TV = 0.12 X 6 = 0.72
Total energy consumed = 0.48 + 0.8 + 0.72 = 2 units
Bill amount = 2.50 X 2 X 30 = rs.150
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