Question

In a house,3 bulbs of 100 watt each are used for 5 hours daily,2 fans of 50 watt each are used for 10 hours daily and an electric heater of 1kw is used for half an hour daily. Calculate the total energy consumed in a month of 31 days and its cost at the rate of₹ 3.60/kWh

Answer 1

Answer:

HII MATE

HERE'S THE ANSWER

Step-by-step explanation:

Energy due to three bulbs

Energy = kWh

= 300/1000 × 5 × 31

= 93/2

= 46.5 units.

Energy due to two fans,

Energy = kWh

= 100/1000 × 10 × 31

= 31 units.

Energy due to electric heater,

Energy = kWh

= 1000/1000 × 1 × 31

= 31 units.

So total energy used in 31 days is 46.5 + 31 + 31 = 108.5 units.

Now rate is rs.3.60/units,

So,

Cost = 3.60 × 108.5

= Rs. 390.6

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