Question

(iii) Calculate electricity bill for ONE month in a house which is using electrical devices as follows,
Unit rate is RS. 3/-
(a) One 60 W bulb is used daily 6 hours
(b) A Fridge of 120 W is used 24 hours a day
(c) TV of power 150 W is used 5 hours a day​

Answer 1

Answer:

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

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