Question

B) An electric refrigerator rated 400W operates 8 hour /day. What is the cost of the energy

to operate it for 30 days at Rs 3.00 per kWh ?

Answer 1

Cost of the energy to operate refrigerator at a rate of Rs 3.00 per kWh = 96 x 3.00 = Rs 288.00.

Answer 2

((Pt)/100.)×money ×days.

time=8×60=480×400=192000.

192000/1000=192

192×3×30=17,280.

this is my answer