Question

 The charge of electricity for the first 20 units is Rs. 80. If Rs. 7.30 per unit is charged for the units 21 to 30, what is the charge of 27 units of electricity consumed in a household​

Answer 1

Answer:

The cost of 27 units of electricity will be Rs. 131.10

Step-by-step explanation:

Given that:

Cost of first 20 units = Rs. 80

Cost of per unit after 20 units = Rs. 7.30

Units consumed in a household = 27 units

Bill of first 20 will be Rs. 80 and 7 units will be charged on the rate of 7.30

Cost of 7 units = 7*7.30 = Rs. 51.10

Cost of 27 units = Rs. 80 + 51.10 = Rs. 131.10

Hence,

The cost of 27 units of electricity will be Rs. 131.10