Question

15% of water bill is reduced from the original bill, then Rs.170 will be the balance to be paid. How much was the original bill?
1. Rs. 200
2. Rs. 270
3. Rs. 170
4. Rs. 185

Answer 1

Correct Answer - Option 1 : Rs. 200

Given:

15% of water bill is reduced from the original bill

Balance to be paid = Rs. 170

Calculations:

Let the original bill be Rs. x

⇒ x – (15/100)x = 170

⇒ (100 – 15)x/100 = 170

⇒ 85x/100 = 170

⇒ x/100 = 2

⇒ x = Rs. 200 

∴ The original bill was Rs. 200