Question

6 tubes light of 40w each and 4 fans of 100w each operate on an average 10 hours a day. if the energy cost rs 3 per unit, calculate the monthly bill. ​

Answer 1

Explanation:

1unit=1kw/h

power= (6×40)+(4×100)

P=640 watt

power in one day = 10×640 = 6.4kw*h

rs for one day = 3×6.4= 19.2

for month = 19.2×30

= 576

Answer 2

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