Question

Calculate the electricity bill for the month of January(cost of 1 unit = Rs.7),if the consumption of the electrical components per is as follows:
10Fan(40W, 10h),
20 Tubelight(20W, 10h),
2 Television sets (100W, 5h),
1 fridge(120 W, 10h),
1 Music system(150W ,1h)
4 AC(1500W , 10h)

Answer 1

Answer:

kwh = 1000 W

Bulb Rating =60 W = .06 kW

Bulb illuminates for = 10hrs/day

Bulb consumes units( kWH)/day= .06×10= .6kWH/ day = .6 units/ day

In 30 days = .6×30 = 18units

1 unit cost = 3.50/-

12 units cost = 3.50×18 = 63/-

Therfere Rs.63/- has to be paid in a month