Question

Calculate the amount of electricity bill to be paid for the month when 556 units of electricity is the reading of the electric meter in a month. The reading of the meter for the previous month is 423 units. Take the cost of one unit as Rs. 4.09.

• A. Rs. 2274.04
• B. Rs. 1730.07
• C. Rs. 543.97
• D. Rs. 4004.11

Answer 1

The correct option is C Rs. 543.97

Given:
Cost of a unit of electricity, $C_u=Rs.4.09/\text{unit}$
Reading of the current month = 556 units
Reading of the previous month = 423 units

No. of units consumed in the month:
$E=556-423=133\text{units}$
Cost of electrical bill is the product of units consumed and cost per unit.
$C=E{C}_u$
$C=133\times 4.09=Rs.543.97$