A household uses the following electric appliances:
(i) Refrigerator of rating 400 W for 10 h each day.
(ii) Two electric fans of rating 80 W each for 6 h daily.
(iii) Six electric tubes of rating 18 W each for 6 h daily.
Calculate the electricity bill for the household for month of June if cost of electrical energy is 3 per unit.
