Question

A 2kw heater a 200w tv and three 100lamps are all switched on from 6pm to 10pm what is the total cost at Rs 5.50per kwh

Answer 1

Answer:

All the mentioned equipment's are switched on from 6 to 10 pm i.e. for 4 hours. Hence total cost at Rs. 5.50 per kWh = 10 x 5.50 = 55 Rs.Jun 13, 2017