Question

An electric refrigerator rated 200w operates 6 hour/day. What is the cost of the energy to operate it for 30 days at Rs. 4.00 per kwh?

Answer 1

Explanation:

200/1000 =. 2 kw

Now e = kwhr

. 2*6 = 1.2

Now for 30 days= 30*1.2

= 36

Cost = 36*4

= 144 ans