If 20% of an electricity bill is deducted, then Rs. 100 is till to be paid. How much was the original bill?
A. Rs. 115
B. Rs. 110
C. Rs. 125
D. None of these
Answer
Correct Answer: C. Rs. 125
Detail about MCQs
To solve this problem, let’s denote the original electricity bill amount as .
If 20% of the bill is deducted, the remaining amount to be paid is 100. This means 80% of the bill remains.
We can set up the equation as follows:
0.80×x=100
Now, let’s solve for :
x=100/0.80=125
So, the original electricity bill was Rs. 125.
Therefore, the correct answer is C. Rs. 125.