1.

An electric refrigerator rated 400 W operates 8 hours/day, 4 tubelightsrated 40 W operate 6 hours/day and a TV set rated 250 W operates4 hours/day. What is the cost of energy to operate them for the monthof November at the rate of 5.00 per kWh?

Answer»

ANSWER:

ENERGY of ONE DAY =Power×Time=400W×8h=3.2KWh

Energy of 30 days =3.2KWh×30=96KWh

So, cost of the energy =96×3=Rs.288



Discussion

No Comment Found

Related InterviewSolutions