Question

Solve the question and give answer with solution...

The given ans is Rs.1161.22
Give solution for this answer only

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Answer 1

Given I = 0.5 A and V = 220 V

So, Power = Current × voltage = 0.5 × 220 = 110 Wh

Energy consumed by the 10 fans in one day = 10 × 110 × 6 = 6600 Wh

For Electric kettle

Given R = 100 Ohms and V = 220 V Using Ohms Law = I = V/R Amp therefore, I = 220 V/100 Ohms = 2.2 Amp

So, Power = Current × voltage = 2.2 × 220 = 484 Wh

Energy consumed by the 1 electric kettle in one day = 1 × 484 × 6 = 2904 Wh

Total energy consumption in one day = (12000 + 2904 + 6600)Wh = 21,504 W-h

Total energy consumption in the month of November (30 days) = 30 × 21,504 = 654,120 W-h = 654.12 kW-h = 654.12 units

So, the cost will be 654.12 × 1.8 = Rs 1177.416

Answer 2

Answer:

formula is sumation of fx divided by sumation of f

the first one is ur formula that u were looking for