Question

A house is fitted with 10 lamps rated 60W each,4 fans rated 100W each, an electric kettle rated 2kW. If the energy cost rupees 4 per kWh, calculate the monthly bill for running the appliances for 4 hours a day. Take one month=30 days.

Answer 1

hi, this is your answer.

given:

60 w x 10 lamps =  600 w

60 w x 4 hours = 2400 w = 2.4 kw

100 w x 4 fans = 400 w

400 w x 4 hours = 1600 w = 1.6 kw            

total = 2.4 + 1.6 = 4  kw

total energy in 30 days = 30 x 4 = 120 kw

total cost = 120 x 4 = 480 rs.

hope it helps you....please mark as brainliest

Answer 2

Answer:

this should be the correct answer