Question

five led bulbs of 8 w each ,two fans of 40w each , an electric motor of 3 kw ,and a geyser of 5 kw are used for 8 hours per day by a family. calculate the total energy consumed in 30 days and the cost of electricity used in one day at rate of rs 5 per unit​

Answer 1

Usage of all Electric bulbs $= 8W \times 5 = 40W$

Usage of all Electric fans $= 40W \times 2 = 80W$

Usage of Electric motor $= 3kW = 3000W$

Usage of Electric geyser $= 5kW = 5000W$

Total Power usage $= 40 + 80 + 3000 + 5000 = 8120W$

Total Power usage in kW $=\frac{8120}{1000}$

$=8.12 kW$

Total time = 8 hours

∴ Total Energy used $= kW \times hours$

$=8.12 \times 8$

$=64.96 kWh$

Rate per kWh = ₹5

∴ Total cost for one day $= Rate \times kWh$

$= 5 \times 64.96$

$= 324.8$

Number of days = 30 days

∴ Total cost for 30 days = cost of one day $\times$ no. of days

$= 324.8 \times 30$

$= 9744$

The electricity bill for 30 days is ₹9744.

Please mark this as Brainliest if this was helpful!

Answer 2

Answer:

Hope you have understand mate

The electricity bill that will come, it will show Rs. 9744

*lol, in this method we can also calculate our own electricity bill. that would be fun :) JK

Anyway will surely love to help more in the future

BYE BYE....