Question

4 tube lights of 40W each and 2 fans of 100W each operate on the average8 hours a day. If the energy costs Rs. 3.00 per unit, calculate the monthly bill.​

Answer 1

Answer:

9.60

Explanation:

4*40=160

100*2=200

200+160=360

energy cost per unit =3.00

360=3unit 60

3unit cost=3*3=9

so answer is 9.60

Answer 2

Answer:

Power of 4 tube lights = 40 x 4 = 160w power of fans = 2 x 100 = 200w Energy consumed per day = [200 + 160] x 8 = (360 x 8)wh