Question

In a house 5 bulbs of 25 w each and 2 fans of 100 w each are used for 6 hours a day. calculate the units of electricity consumed in a month of 30 days. Also find the electricity bill if 1 unit cost ₹ 2.50 .

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Answer 1

the given

A house has 5 bulbs and 2 fan which runs 6 hours a day

5 bulb dual spending energy (p1)= 5x25 = 125w

2 fan double access energy (p2)= 100x2 = 200w

Total energy = 125+200

(p) = 225

Number of units per 30 days = (day × hour × watt)1000

= 30 x 6x225/1000

= 18x225/100

= 4050/100

kilowatt - hour

2.5 rupees per unit k rate 30 days per month

= 2.5 x 40.5

I =121.25 rupees answer