Question

If an electric bulb of 60w is lighted for 8 hours daily, find electric energy consumed in 30 days

Answer 1

Given:

Power = 60W

Time = 10 hours per day

One unit (kWh) = Rs. 3.50

Find:

Total amount to be paid in a month of 30 days

Solution:

We know that

Energy = power*time

Energy = 60*10 = 600Wh per day

Now total amount of energy required for 30 days will be

= 600*30 = 18000Wh = 18kWh per month

We have given that cost of 1kWh = Rs. 3.50

therefore, total amount to be paid in a month of 30 days will be

= 18*3.50

= 63 rupee per month

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