If 21% of an electricity bill is discounted, Rs. 1817 is still to be paid. How much was the original bill amount ?

Options

A. Rs. 1502
B. Rs. 2336
C. Rs. 2300
D. Rs. 1538

Answer

To find the original electricity bill amount before the discount, we can follow these steps:

### Step 1: Understand the Discount
The problem states that 21% of the electricity bill is discounted. This means that the customer pays 79% of the original bill amount.

### Step 2: Set Up the Equation
Let the original bill amount be represented as \( x \). According to the problem, the amount paid after the discount is:
\[ 79\% \text{ of } x = 1817 \]
This can be written mathematically as:
\[ 0.79x = 1817 \]

### Step 3: Solve for the Original Bill Amount
To find \( x \), we can rearrange the equation:
\[ x = \frac{1817}{0.79} \]

### Step 4: Calculate the Value
Now we can perform the calculation:
\[ x = \frac{1817}{0.79} \approx 2300 \]

### Step 5: Conclusion
Thus, the original bill amount is:
\[ \text{Original Bill Amount} = Rs. 2300 \]