Calculate one month cost of using 50 Watt energy saver for 8 hours daily in your study room p. Assume that the price of a unit is arms 12.???

k Nishant

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

a straight line sloped

the answer is a. hope this .